Critical severity9.8NVD Advisory· Published Apr 27, 2026· Updated Apr 27, 2026

CVE-2026-7123

Description

A vulnerability was found in Totolink A8000RU 7.1cu.643_b20200521. Affected is the function setIptvCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Performing a manipulation of the argument setIptvCfg results in os command injection. The attack can be initiated remotely. The exploit has been made public and could be used.

Patches

No patches discovered yet.

Vulnerability mechanics

AI mechanics synthesis has not run for this CVE yet.

References

News mentions

No linked articles in our index yet.

Severity

CriticalCVSS v3.1

9.8/ 10

CVSS v48.9

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/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

Attack vector: Network
Complexity: Low
Privileges: None
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

Probability of exploitation in the next 30 days.

1.25%

VYPR risk score

Composite of severity, exploitation, and reach.

0.64high

cvss	0.637
epss	0.001
exploit	0.000
kev	0.000
patch	0.000
ransomware	0.000

Weaknesses

CWE-77
Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVE ID

CVE-2026-7123

Credits

L(
LtzHuster2 (VulDB User)
reporter