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Vulnerability record · CVE-2026-15511 · published 12 July 2026

CVE-2026-15511: Command injection vulnerability

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 argument filename causes os command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

8.9 CVSS 4.0 High EPSS 4.7% · top 8.5% CWE-77 · Command injectionCWE-78 · OS command injection Deferred
8.9CVSS 4.0 base score, v2 10.0
4.7%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
14 Jul 2026Last modified by NVD

Description

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 argument filename causes os command injection. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

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:

References

LinkTags
https://github.com/luminarydawn/cve/tree/main/Command%20Injection%20in%20Comfast%20CF-WR631AX%20V3%20%E2%80%94%20WiFi%20
https://vuldb.com/cve/CVE-2026-15511
https://vuldb.com/submit/846719
https://vuldb.com/vuln/377840
https://vuldb.com/vuln/377840/cti

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Source: NIST National Vulnerability Database (record CVE-2026-15511), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.