CVE-2026-5853

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.

Score

CVSS 3.1 9.8 Critical

Status

Deferred - cna@vuldb.com

Published

2026-04-09

Last modified

2026-10-26

Weaknesses

CWE-77, CWE-78

Affected products

• A7100ru Firmware (Totolink)

References

• https://vuldb.com/vuln/356379
• https://vuldb.com/vuln/356379/cti
• https://vuldb.com/submit/791274
• https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_159/README.md
• https://www.totolink.net/