CVE-2026-2537Public exploitNetwork attack vector

Authenticated command execution via NTP timestr injection

Published Feb 16, 2026 · Updated Feb 16, 2026

Command injection in COMFAST CF-E4 2.6.0.1 allows remote authenticated users to execute commands through its web interface. The ntp_timezone HTTP POST handler accepts attacker-controlled timestr content without neutralizing command syntax; the exact function is undisclosed. Administrative access to the management interface is required, and executed commands can read or alter data or interrupt device operation.

CVSS severity7.2
High
EPSS probability25.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Command injection in COMFAST CF-E4 2.6.0.1 allows remote authenticated users to execute commands through its web interface. The ntp_timezone HTTP POST handler accepts attacker-controlled timestr content without neutralizing command syntax; the exact function is undisclosed. Administrative access to the management interface is required, and executed commands can read or alter data or interrupt device operation.

The record

CVE
CVE-2026-2537
Published
Feb 16, 2026
Updated
Feb 16, 2026
Vendor
COMFAST
Product
CF-E4
Classifications
CWE-77, CWE-74, T1059
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Feb 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.6.0.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

COMFAST · CF-E4version=2.6.0.1

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
2.0VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
5.8VulDBAV:N/AC:L/Au:M/C:P/I:P/A:P
4.7VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
5.1VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo