What is CVE-2026-15511?

CVE-2026-15511 is a critical-severity vulnerability in Comfast Cf-wr631ax V3, classified under Command Injection. CVSS score: 9.8/10. Published 2026-07-12.

How severe is CVE-2026-15511?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Comfast Cf-wr631ax V3

CVE-2026-15511

A vulnerability was determined in Comfast CF-WR631AX V3 up to 2.7.0.8. Affected by this vulnerability is the function system_wl_upload_pic_file of the file /usr/bin/webmgnt of the component FastCGI Backend. This manipulation of the argumen…

Vulnerability class: Command Injection (OS Command Injection)

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Comfast Cf-wr631ax V3 — versions 2.7.0.0, 2.7.0.1, 2.7.0.2

Weakness classification (CWE)

References

cna@vuldb.com (exploit)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)

Frequently asked questions

What is CVE-2026-15511?: CVE-2026-15511 is a critical-severity vulnerability in Comfast Cf-wr631ax V3, classified under Command Injection. CVSS score: 9.8/10. Published 2026-07-12.
How severe is CVE-2026-15511?: Critical severity. CVSS v3 base score is 9.8 out of 10.