CVE-2026-9456
published 2026-05-25CVE-2026-9456: A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setOpenVpnCfg of the file /cgi-bin/cstecgi.cgi of the component Web…
PriorityP275critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
1.91%
77.2th percentile
A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setOpenVpnCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument enabled results in os command injection. The attack can be executed remotely. The exploit has been made public and could 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
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-x66f-p4rh-4mgx: A vulnerability was found in Totolink A8000RU 7
ghsa_unreviewed·2026-05-26
CVE-2026-9456 [HIGH] CWE-77 GHSA-x66f-p4rh-4mgx: A vulnerability was found in Totolink A8000RU 7
A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setOpenVpnCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument enabled results in os command injection. The attack can be executed remotely. The exploit has been made public and could be used.
CVEList
Totolink A8000RU Web Management cstecgi.cgi setOpenVpnCfg os command injection
cvelistv5·2026-05-25·CVSS 9.3
CVE-2026-9456 [CRITICAL] CWE-78 Totolink A8000RU Web Management cstecgi.cgi setOpenVpnCfg os command injection
Totolink A8000RU Web Management cstecgi.cgi setOpenVpnCfg os command injection
A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setOpenVpnCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument enabled results in os command injection. The attack can be executed remotely. The exploit has been made public and could 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 setOpenVpnCfg enabled os command injection
vuldb·2026-05-24
CVE-2026-9456 [CRITICAL] Totolink A8000RU 7.1cu.643_b20200521 Web Management Interface /cgi-bin/cstecgi.cgi setOpenVpnCfg enabled os command injection
A vulnerability categorized as critical has been discovered in Totolink A8000RU 7.1cu.643_b20200521. Impacted is the function setOpenVpnCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. The manipulation of the argument enabled results in os command injection.
This vulnerability is identified as CVE-2026-9456. The attack can be executed remotely. Additionally, an exploit exists.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2026-05-25
Published