CVE-2026-44096

Root command execution via unsafe udhcpc sudo rule

Published Jul 30, 2026 · Updated Jul 30, 2026

OS command injection in Phoenix Contact CHARX SEC-3xxx firmware before 1.9.1 allows local users to run arbitrary commands as root. The sudo policy permits the low-privilege charx-web account to run udhcpc with root privileges even though the binary can perform unsafe actions. Exploitation requires existing local code execution as charx-web and grants complete control of the charging controller.

CVSS severity8.5
High
EPSS probability0.23%
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 Phoenix Contact CHARX SEC-3xxx firmware before 1.9.1 allows local users to run arbitrary commands as root. The sudo policy permits the low-privilege charx-web account to run udhcpc with root privileges even though the binary can perform unsafe actions. Exploitation requires existing local code execution as charx-web and grants complete control of the charging controller.

The record

CVE
CVE-2026-44096
Published
Jul 30, 2026
Updated
Jul 30, 2026
Vendor
Phoenix Contact
Product
CHARX SEC-3100
Classifications
CWE-78, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 30, 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?

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

  1. Affected versionversion=1.0.0 <1.9.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Phoenix Contact · CHARX SEC-3100version=1.0.0 <1.9.1
Phoenix Contact · CHARX SEC-3150version=1.0.0 <1.9.1
Phoenix Contact · CHARX SEC-3050version=1.0.0 <1.9.1
Phoenix Contact · CHARX SEC-3000version=1.0.0 <1.9.1

Published CVSS scores

8.5CERT VDECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
7.8CERT VDECVSS:3.1/AV:L/AC:L/PR:L/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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1068Exploitation for Privilege Escalation

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.

Technologies

Your stack

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Your stack

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