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VulnerabilityPublished Updated

CVE-2025-57293: COMFAST CF-XR11 · A Command Injection

Source CVE Database V5

0

Not known to be exploited · CVSS 8.8 High.

Data as of 26 Oct 2026, 13:47 UTC

CVSS 3.1 base score
8.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
1.6% chance of exploitation in 30 days – higher than 76% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 18 Sep 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

AI-suggested

Given the absence of official patches, European organizations should immediately implement compensating controls. These include restricting access to the device management interface by enforcing network segmentation and firewall rules to limit access to trusted IP addresses only. Disable or restrict the vulnerable multi_pppoe API endpoint if possible. Monitor network traffic for suspicious POST requests targeting /cgi-bin/mbox-config with the method=SET and section=multi_pppoe parameters. Employ intrusion detection/prevention systems (IDS/IPS) with custom signatures to detect attempts to exploit this command injection. Regularly audit device firmware versions and plan for timely updates once patches become available. Additionally, enforce strong network access controls and consider replacing vulnerable devices with more secure alternatives if patching is not feasible in the short term. Educate network administrators about the risk and signs of exploitation to enable rapid incident response.

Description

A command injection vulnerability in COMFAST CF-XR11 (firmware V2.7.2) exists in the multi_pppoe API, processed by the sub_423930 function in /usr/bin/webmgnt. The phy_interface parameter is not sanitized, allowing attackers to inject arbitrary commands via a POST request to /cgi-bin/mbox-config?method=SET&section=multi_pppoe. When the action parameter is set to "one_click_redial", the unsanitized phy_interface is used in a system() call, enabling execution of malicious commands. This can lead to unauthorized access to sensitive files, execution of arbitrary code, or full device compromise.

References

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