CVE-2026-9455
published 2026-05-25CVE-2026-9455: 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…
PriorityP274critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
1.91%
77.2th percentile
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.
Affected
1 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| totolink | a8000ru | — | — |
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv4.08.9HIGHCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
nvdv2.010.0CRITICALAV:N/AC:L/Au:N/C:C/I:C/A:C
cvelistv5v4.09.3CRITICALCVSS: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
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GHSA
GHSA-4crh-78xh-vwrj: A vulnerability has been found in Totolink A8000RU 7
ghsa_unreviewed·2026-05-26
CVE-2026-9455 [HIGH] CWE-77 GHSA-4crh-78xh-vwrj: A vulnerability has been found in Totolink A8000RU 7
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.
CVEList
Totolink A8000RU Web Management cstecgi.cgi UploadOpenVpnCert os command injection
cvelistv5·2026-05-25·CVSS 9.3
CVE-2026-9455 [CRITICAL] CWE-78 Totolink A8000RU Web Management cstecgi.cgi UploadOpenVpnCert os command injection
Totolink A8000RU Web Management cstecgi.cgi UploadOpenVpnCert os command injection
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.
Timeline: 2026-05-24: Advisory disclosed; 2026-05-24: VulDB entry created; 2026-05-24: VulDB entry last update
VulDB
Totolink A8000RU 7.1cu.643_b20200521 Web Management Interface /cgi-bin/cstecgi.cgi UploadOpenVpnCert FileName os command injection
vuldb·2026-05-24
CVE-2026-9455 [CRITICAL] Totolink A8000RU 7.1cu.643_b20200521 Web Management Interface /cgi-bin/cstecgi.cgi UploadOpenVpnCert FileName os command injection
A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. It has been rated as critical. 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.
This vulnerability is referenced as CVE-2026-9455. Remote exploitation of the attack is possible. Furthermore, an exploit is available.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-05-25
Published