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CVE-2026-5851

Totolink A7100RU CGI cstecgi.cgi setUPnPCfg os command injection

CVSS 9.3 CRITICALEPSS 14.1%CWE-77CWE-78
A security flaw has been discovered in Totolink A7100RU 7.4cu.2313_b20191024. This impacts the function setUPnPCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument enable results in os command injection. The attack can be executed remotely. The exploit has been released to the public and may be used for attacks.
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
Affected products
Totolink · A7100RU
public PoCs found — 1
cve_referencegithub.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_157/README.mdunverified
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.

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References
https://github.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_157/README.mdhttps://vuldb.com/submit/791271https://vuldb.com/vuln/356377https://vuldb.com/vuln/356377/ctihttps://www.totolink.net/