CVE-2024-39226Public exploit

Unauthenticated command execution via s2s port injection

Published Aug 6, 2024 · Updated Nov 12, 2024

Command injection in GL.iNet router firmware allows remote attackers to execute arbitrary shell commands through the s2s API. The enable_echo_server method passes its untrusted port value into a shell command without neutralizing shell substitutions, causing injected expressions to run. No account or user interaction is required, but the RPC endpoint must be reachable from an adjacent network; successful exploitation can alter router state.

CVSS severity4.3
Medium
EPSS probability20.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in GL.iNet router firmware allows remote attackers to execute arbitrary shell commands through the s2s API. The enable_echo_server method passes its untrusted port value into a shell command without neutralizing shell substitutions, causing injected expressions to run. No account or user interaction is required, but the RPC endpoint must be reachable from an adjacent network; successful exploitation can alter router state.

The record

CVE
CVE-2024-39226
Published
Aug 6, 2024
Updated
Nov 12, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-77, T1059.004
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 6, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 12, 2024Record 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 vectoradjacent
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.3CISA-ADPCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

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.

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No observations available

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

Weakness, pattern, technique

CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1059.004Unix 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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