CVE-2026-9455: critical vulnerability in Totolink A8000RU
Totolink A8000RU Web Management 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 1.9%
A vulnerability has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function UploadOpenVpnCert of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument FileName leads to os command injection. Remote exploitation of the attack is possible. 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 · A8000RUpublic PoCs found — 1
cve_referencegithub.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_342/README.mdunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Totolink A8000RU
In the same product, most dangerous first.
CVE-2026-7242CRITICALTotolink A8000RU CGI cstecgi.cgi setOpenVpnClientCfg os command injectionEPSS 2.5%CVE-2026-7243CRITICALTotolink A8000RU CGI cstecgi.cgi setRadvdCfg os command injectionEPSS 2.4%CVE-2026-7241CRITICALTotolink A8000RU CGI cstecgi.cgi setWiFiBasicCfg os command injectionEPSS 2.4%CVE-2026-7204CRITICALTotolink A8000RU CGI cstecgi.cgi setPptpServerCfg os command injectionEPSS 2.4%CVE-2026-7203CRITICALTotolink A8000RU CGI cstecgi.cgi setUrlFilterRules os command injectionEPSS 2.4%CVE-2026-7202CRITICALTotolink A8000RU CGI cstecgi.cgi setWiFiWpsStart os command injectionEPSS 2.4%