HOMEVULNERABILITIESCVE-2023-38866
CRITICAL

CVE-2023-38866

CWE-77Published: August 15, 2023· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

COMFAST CF-XR11 V2.7.2 has a command injection vulnerability detected at function sub_415588. Attackers can send POST request messages to /usr/bin/webmgnt and inject commands into parameter interface and display_name.

NVD Source

Risk Analysis

This vulnerability allows for command injection in the COMFAST CF-XR11 web management interface. With a CVSS score of 9.8, it is considered critical as it allows unauthenticated remote attackers to execute arbitrary commands.

There is no known public exploit for this vulnerability, and it is not currently listed in the CISA KEV catalog. It is remotely exploitable due to the network attack vector and low complexity.

Recommended Action

Users should update the COMFAST CF-XR11 firmware to a version beyond 2.7.2. Ensure the device management interface is not exposed to the public internet.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2023-38866 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

comfast2 product(s)
cf-xr11 firmwarecf-xr11
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
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Official Patches & Advisories

All References (2)

Quick Facts

CVE IDCVE-2023-38866
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-77
CISA KEVNo
Affected1 vendor(s)
PublishedAug 15, 2023

Related CVEs (CWE-77)

Recommended Actions

  • Apply vendor patches immediately
  • Monitor CVE-2023-38866 in threat intel feeds
  • Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.