TI-2026-13050 Aliases CVE-2026-15511 GHSA-hpmx-855m-f9m5

Comfast CF-WR631AX V3 FastCGI Backend webmgnt system_wl_upload_pic_file os command injection

HIGH 81CWE-77Published 2026-07-12 · Updated 2026-07-14

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.04731 91st percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Comfast	CF-WR631AX V3	2.7.0.0; 2.7.0.1; 2.7.0.2; 2.7.0.3; 2.7.0.4; 2.7.0.5; 2.7.0.6; 2.7.0.7; 2.7.0.8	—	No fix listed	CNA

CF-WR631AX V3 VendorComfast Affected 2.7.0.0; 2.7.0.1; 2.7.0.2; 2.7.0.3; 2.7.0.4; 2.7.0.5; 2.7.0.6; 2.7.0.7; 2.7.0.8 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:comfast:cf-wr631ax_v3::::::::	—	—	Comfast

cpe:2.3:a:comfast:cf-wr631ax_v3:*:*:*:*:*:*:*:* Versions — — ·Comfast

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-15511
2026-10-03 Alias added: GHSA-hpmx-855m-f9m5

References

Exploit 1

https://github.com/luminarydawn/cve/tree/main/Command%20Injection%20in%20Comfast%20CF-WR631AX%20V3%20%E2%80%94%20WiFi%20Portal%20Image%20Upload%20(CWE-78)

TI-2026-63261 Comfast CF-N1-S Web Management mbox-config get_css_path_from_uri stack-based overflow CVSS 4.0CRITICAL 10.0
TI-2024-29900 COMFAST CF-XR11 V2.7.2 has a command injection vulnerability in function sub_424CB4. CVSS 3.1CRITICAL 9.8
TI-2023-20142 COMFAST CF-XR11 V2.7.2 has a command injection vulnerability detected at function… CVSS 3.1CRITICAL 9.8
TI-2023-20141 COMFAST CF-XR11 V2.7.2 has a command injection vulnerability detected at function… CVSS 3.1CRITICAL 9.8
TI-2023-20140 An issue in COMFAST CF-XR11 v.2.7.2 allows an attacker to execute arbitrary code via the… CVSS 3.1CRITICAL 9.8
TI-2023-20139 An issue in COMFAST CF-XR11 v.2.7.2 allows an attacker to execute arbitrary code via the… CVSS 3.1CRITICAL 9.8

See all 36 →

Sources

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