CVE-2025-29269Public exploitNetwork attack vector

Unauthenticated command execution via unsanitized CGI parameter

Published Dec 4, 2025 · Updated Jul 5, 2026

OS command injection in ALLNET ALL-RUT22GW 3.3.8 allows remote attackers to execute arbitrary commands through the popen.cgi endpoint. The popen.cgi binary reads the command query parameter with cgiGetValue and passes it unchanged to popen, which invokes /bin/sh without sanitization. An unauthenticated HTTP GET request is sufficient, and the demonstrated command executes as root, permitting complete control of the router.

CVSS severity9.8
Critical
EPSS probability1.98%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in ALLNET ALL-RUT22GW 3.3.8 allows remote attackers to execute arbitrary commands through the popen.cgi endpoint. The popen.cgi binary reads the command query parameter with cgiGetValue and passes it unchanged to popen, which invokes /bin/sh without sanitization. An unauthenticated HTTP GET request is sufficient, and the demonstrated command executes as root, permitting complete control of the router.

The record

CVE
CVE-2025-29269
Published
Dec 4, 2025
Updated
Jul 5, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-78, T1059.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 5, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

6.5GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
9.8CISA ADP VulnrichmentCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059.004Command and Scripting Interpreter: Unix Shell

Public exploit references

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

Technologies

Your stack

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Your stack

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