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TI-2026-03877 Aliases CVE-2026-4466GHSA-chcf-49r6-qhgf

Comfast CF-AC100 mbox-config command injection

Priority MEDIUM 56CWE-74Published · Updated

Key facts

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

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

Summary

A vulnerability has been found in Comfast CF-AC100 2.6.0.8. This affects an unknown function of the file /cgi-bin/mbox-config?method=SET&section=ntp_timezone. The manipulation leads to command injection. Remote exploitation of the attack is possible. The exploit has been disclosed to the public and may be used. 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 0.04317 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
No
Technical impact
Partial

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

Affected products

VendorProductAffected versionsFixed inStatusSource
ComfastCF-AC1002.6.0.8—No fix listedCNA
  • CF-AC100 VendorComfast Affected 2.6.0.8 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:o:comfast:cf-ac100_firmware:*:*:*:*:*:*:*:*——Comfast
  • cpe:2.3:o:comfast:cf-ac100_firmware:*:*:*:*:*:*:*:* Versions — — ·Comfast

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-4466
  2. 2026-10-03 Alias added: GHSA-chcf-49r6-qhgf
  3. 2026-10-25 EPSS moved to the 90th–95th percentile

References

Exploit 1

  • 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

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences