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CVE-2026-7139

CRITICAL
9.8NVD

Summary

generated automatically from NVD data

Totolink A8000RU firmware version 7.1cu.643_b20200521 contains an OS command injection flaw (CWE-77) in the setWiFiAclRules function of /cgi-bin/cstecgi.cgi, part of the CGI Handler component. Manipulating the mode argument lets a remote attacker inject operating system commands. The CVSS v3.1 score is 9.8 (CRITICAL), and the description notes that an exploit has been published.

NVD description

A flaw has been found in Totolink A8000RU 7.1cu.643_b20200521. This issue affects the function setWiFiAclRules of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. This manipulation of the argument mode causes os command injection. The attack is possible to be carried out remotely. The exploit has been published and may be used.

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EPSS · FIRST.org

3.3%probability of exploitation in the next 30 days

Higher than 88% of scored CVEs

EPSS (Exploit Prediction Scoring System) estimates, from observed exploitation activity, how likely a CVE is to be exploited in the next 30 days. It complements CVSS, which measures severity, not likelihood. Score of 2026-10-19, recomputed daily by FIRST.org.

CVSS v3.1 Score

9.8
/ 10.0
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Information

Published
27 avr. 2026
Updated
17 juin 2026
Status
Deferred
Source
cna@vuldb.com

Weaknesses (CWE)

CWE-77CWE-78

Similar CVEs

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