CVE-2026-9436
published 2026-05-25CVE-2026-9436: A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setL2tpServerCfg of the file /cgi-bin/cstecgi.cgi of the…
PriorityP273critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EPSS
2.00%
78.4th percentile
A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setL2tpServerCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument enable can lead to os command injection. The attack can be executed remotely. The exploit has been published 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-66fw-g229-xchr: A flaw has been found in Totolink A8000RU 7
ghsa_unreviewed·2026-05-26
CVE-2026-9436 [HIGH] CWE-77 GHSA-66fw-g229-xchr: A flaw has been found in Totolink A8000RU 7
A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setL2tpServerCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument enable can lead to os command injection. The attack can be executed remotely. The exploit has been published and may be used.
CVEList
Totolink A8000RU Web Management cstecgi.cgi setL2tpServerCfg os command injection
cvelistv5·2026-05-25·CVSS 9.3
CVE-2026-9436 [CRITICAL] CWE-78 Totolink A8000RU Web Management cstecgi.cgi setL2tpServerCfg os command injection
Totolink A8000RU Web Management cstecgi.cgi setL2tpServerCfg os command injection
A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setL2tpServerCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument enable can lead to os command injection. The attack can be executed remotely. The exploit has been published 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 setL2tpServerCfg enable os command injection
vuldb·2026-05-24
CVE-2026-9436 [CRITICAL] Totolink A8000RU 7.1cu.643_b20200521 Web Management Interface /cgi-bin/cstecgi.cgi setL2tpServerCfg enable os command injection
A vulnerability, which was classified as critical, was found in Totolink A8000RU 7.1cu.643_b20200521. The impacted element is the function setL2tpServerCfg of the file /cgi-bin/cstecgi.cgi of the component Web Management Interface. Executing a manipulation of the argument enable can lead to os command injection.
This vulnerability is handled as CVE-2026-9436. The attack can be executed remotely. Additionally, an exploit exists.
No detection rules found.
No public exploits indexed.
2026-05-25
Published