PT-2026-31592 · Totolink · A7100Ru

Ltzhuster2 · Published 2026-04-09 · Updated 2026-04-09 · CVE-2026-5853

Mitre

CVSS v3.1

9.8

Critical

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

Exploit

Fix

OS Command Injection

Command Injection

Weakness Enumeration

CWE-78

CWE-77

Related Identifiers

CVE-2026-5853

Affected Products

A7100Ru

References · 6

• 🔥 https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_159/README.md · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-5853 · Security Note
• https://vuldb.com/vuln/356379 · Note
• https://totolink.net · Note
• https://vuldb.com/submit/791274 · Note
• https://vuldb.com/vuln/356379/cti · Note