CVE-2022-43722

SYSTEM code execution via writable library folder

Published Dec 13, 2022 · Updated Apr 22, 2025

DLL search-order hijacking in Siemens SICAM PAS/PQS before 7.0 allows local users to execute code with SYSTEM rights. A library folder is writable by a low-privileged user, and a service searches it for a required DLL and loads the attacker's file. Exploitation requires local low-privileged access and begins when the affected service starts and requests the planted library.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

DLL search-order hijacking in Siemens SICAM PAS/PQS before 7.0 allows local users to execute code with SYSTEM rights. A library folder is writable by a low-privileged user, and a service searches it for a required DLL and loads the attacker's file. Exploitation requires local low-privileged access and begins when the affected service starts and requests the planted library.

The record

CVE
CVE-2022-43722
Published
Dec 13, 2022
Updated
Apr 22, 2025
Vendor
Siemens
Product
SICAM PAS/PQS
Classifications
CWE-427, T1574.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record 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=All versions < V7.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Siemens · SICAM PAS/PQSversion=All versions < V7.0

Published CVSS scores

7.8CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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.

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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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
T1574.001DLL Search Order Hijacking

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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