Stack Buffer Overflow in ei_s_print_term at Very Large Integer_CVE-2026-49760

{
    "lastseen": "",
    "description": "Stack-based Buffer Overflow vulnerability in Erlang OTP (erl_interface) allows Stack-based Buffer Overflow.\n\nThis vulnerability is associated with program file lib/erl_interface/src/misc/ei_printterm.c and program routine ei_s_print_term.\n\nThe C function ei_s_print_term uses an internal 2000-character stack buffer to format terms. When called with an encoded Erlang term containing a very large integer (encoded representation exceeding 2000 characters), the buffer overflows. The overflow bytes are restricted to the ASCII values of 0-9 and A-F, which limits exploitation to Denial of Service.\n\nThe companion function ei_print_term, which prints directly to a FILE instead of a memory buffer, does not contain this bug.\n\nThis issue affects OTP from OTP 17.0 before 27.3.4.13, 28.5.0.2 and 29.0.2, corresponding to erl_interface from 3.7.16 before 5.5.2.1, 5.7.0.1 and 5.8.1.",
    "published": "2026-06-10T14:35:36.804Z",
    "modified": "2026-06-10T16:16:28.366Z",
    "type": "cve",
    "title": "Stack Buffer Overflow in ei_s_print_term at Very Large Integer",
    "source": "EEF",
    "references": "https://github.com/erlang/otp/security/advisories/GHSA-xcxj-5pg2-v72j\nhttps://cna.erlef.org/cves/CVE-2026-49760.html\nhttps://osv.dev/vulnerability/EEF-CVE-2026-49760\nhttps://www.erlang.org/doc/system/versions.html#order-of-versions\nhttps://github.com/erlang/otp/commit/0bef277b2d39dc8babb9ceb4f5d0a456f3007111",
    "id": "CVE-2026-49760",
    "bulletinFamily": "",
    "cwe": [
        "CWE-121"
    ],
    "cvelist": null,
    "sourceData": "Erlang OTP 3.7.16\nErlang OTP 17.0\nErlang OTP 84adefa331c4159d432d22840663c38f155cd4c1",
    "sourceHref": "",
    "cvss": {
        "score": 6.9,
        "severity": "MEDIUM",
        "vector": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
        "version": "4.0"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "OTP",
    "version": "3.7.16",
    "vendor": "Erlang",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}