CVE-2026-6139

Name: CVE-2026-6139
Creator: NVD / NIST
Published: 2026-04-13T01:16:35.5+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.9/10EPSS 1.82%

Last modified Jun 17, 2026

CVE-2026-6139 is a high-severity vulnerability rated 8.9/10 on the CVSS scale. A vulnerability has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function UploadOpenVpnCert of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. EPSS estimates a 1.82% chance of exploitation in the next 30 days.

Description

A vulnerability has been found in Totolink A7100RU 7.4cu.2313_b20191024. This affects the function UploadOpenVpnCert of the file /cgi-bin/cstecgi.cgi of the component CGI Handler. Such manipulation of the argument FileName leads to os command injection. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

Metrics

CVSS 3.1

9.8/10

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

CVSS 4.0

8.9/10

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

EPSS Probability

1.82%

76.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published: Apr 13, 2026
Last Modified: Jun 17, 2026
Status: Deferred

Frequently Asked Questions

What is CVE-2026-6139?

How severe is CVE-2026-6139?

CVE-2026-6139 has a CVSS score of 8.9/10 (HIGH severity). The EPSS model estimates a 1.82% probability of exploitation in the next 30 days.

How do I fix CVE-2026-6139?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-6139?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST