CVE-2024-26005Known exploitation

Service-level code execution via ClientSession use-after-free

Published Mar 12, 2024 · Updated Aug 1, 2024

Use-after-free in Phoenix Contact CHARX SEC-3xxx 1.5.0 and earlier allows remote attackers to execute code as the ControllerAgent service. Malformed HomePlug packets crash the CharxControllerAgent service; teardown then operates on a freed ClientSession object without checking that it still exists. Authentication is not required, but exploitation requires network adjacency and successful timing of the service restart to gain service-level code execution.

CVSS severity4.8
Medium
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Phoenix Contact CHARX SEC-3xxx 1.5.0 and earlier allows remote attackers to execute code as the ControllerAgent service. Malformed HomePlug packets crash the CharxControllerAgent service; teardown then operates on a freed ClientSession object without checking that it still exists. Authentication is not required, but exploitation requires network adjacency and successful timing of the service restart to gain service-level code execution.

The record

CVE
CVE-2024-26005
Published
Mar 12, 2024
Updated
Aug 1, 2024
Vendor
Phoenix Contact
Product
CHARX SEC-3100
Classifications
CWE-459, T1190
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 12, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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?

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

  1. Affected versionversion=0 <=1.5.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Phoenix Contact · CHARX SEC-3100version=0 <=1.5.0
Phoenix Contact · CHARX SEC-3150version=0 <=1.5.0
Phoenix Contact · CHARX SEC-3050version=0 <=1.5.0
Phoenix Contact · CHARX SEC-3000version=0 <=1.5.0

Published CVSS scores

8.8Trend Micro Zero Day InitiativeCVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
4.8CERT VDECVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A: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.

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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 exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-459Incomplete Cleanup
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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

Reported exploitation

Technologies

Your stack

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Your stack

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