CVE-2026-7138

CRITICAL

Totolink A8000RU CGI cstecgi.cgi setNtpCfg os command injection

Title source: cna

Description

A vulnerability was detected in Totolink A8000RU 7.1cu.643_b20200521. This vulnerability affects the function setNtpCfg of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. The manipulation of the argument tz results in os command injection. The attack can be executed remotely. The exploit is now public and may be used.

References (5)

[Vdb Entry, Technical Description] https://vuldb.com/vuln/359737

[Signature, Permissions Required] https://vuldb.com/vuln/359737/cti

[Product] https://www.totolink.net/

[Third Party Advisory] https://vuldb.com/submit/801105

[Exploit] https://github.com/Litengzheng/vuldb_new2/blob/main/A8000RU/vul_313/README.md

View Exploit ZIP pw:eip

Scores

CVSS v3 9.8

EPSS 0.0089

EPSS Percentile 75.6%

Attack Vector NETWORK

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

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact total

Details

CWE

CWE-77 CWE-78

Status published

Products (1)

Totolink/A8000RU 7.1cu.643_b20200521

Published Apr 27, 2026

Tracked Since Apr 27, 2026