PT-2026-8314 · Comfast · Comfast Cf-E4

Cha0Yang · Published 2026-02-16 · Updated 2026-02-25 · CVE-2026-2537

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions Comfast CF-E4 version 2.6.0.1

Description A flaw exists in Comfast CF-E4 that allows for remote command injection. The issue is located within the HTTP POST Request Handler component, specifically in the file /cgi-bin/mbox-config?method=SET&section=ntp timezone. Manipulation of the timestr argument can lead to unauthorized command execution. The exploit for this issue is publicly available. The vendor was contacted regarding this disclosure but did not provide a response.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Command Injection

Special Elements Injection

Weakness Enumeration

CWE-77

CWE-74

Related Identifiers

CVE-2026-2537

Affected Products

Comfast Cf-E4

References · 10

• 🔥 https://github.com/cha0yang1/COMFAST/blob/main/RCE.md · Exploit
• https://osv.dev/vulnerability/CVE-2026-2537 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-2537 · Security Note
• https://t.me/cveNotify/153166 · Telegram Post
• https://vuldb.com/?id.346125 · Note
• https://vuldb.com/?ctiid.346125 · Note
• https://vuldb.com/?submit.749196 · Note
• https://twitter.com/SecAideInfo/status/2024071000846115068 · Twitter Post
• https://t.me/CVEtracker/44792 · Telegram Post
• https://t.me/cveNotify/152087 · Telegram Post