Totolink A7100RU CGI cstecgi.cgi setIpv6LanCfg os command injection_CVE-2026-5853

9.3 / 10

CRITICAL

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P

Description

A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this vulnerability is the function setIpv6LanCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument addrPrefixLen leads to os command injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used.

Basic Information

ID CVE-2026-5853

Source VulDB

Published Apr 9, 2026 at 06:30

Modified Apr 9, 2026 at 14:47

Affected Product

Vendor Totolink

Product A7100RU

Version 7.4cu.2313_b20191024

Affected Versions Totolink A7100RU 7.4cu.2313_b20191024

CWE Classification

CWE-78 CWE-77

References

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    "description": "A security vulnerability has been detected in Totolink A7100RU 7.4cu.2313_b20191024. Affected by this vulnerability is the function setIpv6LanCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument addrPrefixLen leads to os command injection. The attack may be performed from remote. The exploit has been disclosed publicly and may be used.",
    "published": "2026-04-09T06:30:21.107Z",
    "modified": "2026-04-09T14:47:52.744Z",
    "type": "cve",
    "title": "Totolink A7100RU CGI cstecgi.cgi setIpv6LanCfg os command injection",
    "source": "VulDB",
    "references": "https://vuldb.com/vuln/356379\nhttps://vuldb.com/vuln/356379/cti\nhttps://vuldb.com/submit/791274\nhttps://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_159/README.md\nhttps://www.totolink.net/",
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    "sourceData": "Totolink A7100RU 7.4cu.2313_b20191024",
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    "cvss": {
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