CVE-2026-6139: critical vulnerability in Totolink A7100RU
Totolink A7100RU CGI cstecgi.cgi UploadOpenVpnCert os command injection
Published · Updated
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 1.8%
A vulnerability has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function UploadOpenVpnCert of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument FileName leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.
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 · A7100RUpublic PoCs found — 1
cve_referencegithub.com/Litengzheng/vuldb_new/blob/main/A7100RU/vul_192/README.mdunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Totolink A7100RU
In the same product, most dangerous first.
CVE-2026-5854CRITICALTotolink A7100RU CGI cstecgi.cgi setWiFiEasyCfg os command injectionEPSS 16.9%CVE-2026-5850CRITICALTotolink A7100RU CGI cstecgi.cgi setVpnPassCfg os command injectionEPSS 15.4%CVE-2026-5853CRITICALTotolink A7100RU CGI cstecgi.cgi setIpv6LanCfg os command injectionEPSS 13.7%CVE-2026-5852CRITICALTotolink A7100RU CGI cstecgi.cgi setIptvCfg os command injectionEPSS 13.7%CVE-2023-7095CRITICALTotolink A7100RU HTTP POST Request main buffer overflowEPSS 13.7%CVE-2026-5851CRITICALTotolink A7100RU CGI cstecgi.cgi setUPnPCfg os command injectionEPSS 13.6%