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Codesys CVE-2022-22516

HIGH
Incorrect Permission Assignment for Critical Resource (CWE-732)
2022-04-07 info@cert.vde.com
Information Disclosure Microsoft Codesys Control Rte Sl Control Win Sl Development System Control Rte Sl For Beckhoff Cx
7.8
CVSS 3.1 · NVD
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Vulnerability Assessment

Weakness
CWE
CWE-732
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V13 - Configuration Permission assignment review
Impact

CVSS score of 7.8 (HIGH). Attack characteristics: local attack vector, low complexity, low privileges required, no user interaction not required.
Exploit ScenarioDerived

A local attacker with access to the system could access resources due to misconfigured permissions.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
No patch listed yet 0.3% exploitation probability (EPSS)

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AnalysisAI

The SysDrv3S driver in the CODESYS Control runtime system on Microsoft Windows allows any system user to read and write within restricted memory space. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. No vendor patch available.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Review and restrict file/resource permissions, apply principle of least privilege.

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Technical ContextAI · show details

This vulnerability is classified as Incorrect Permission Assignment (CWE-732), which allows attackers to access resources due to misconfigured permissions. The SysDrv3S driver in the CODESYS Control runtime system on Microsoft Windows allows any system user to read and write within restricted memory space. Affected products include: Codesys Control Rte Sl, Codesys Control Rte Sl \(For Beckhoff Cx\), Codesys Control Win Sl, Codesys Development System.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.8 HIGH
AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

DescriptionNVD

The SysDrv3S driver in the CODESYS Control runtime system on Microsoft Windows allows any system user to read and write within restricted memory space.

Threat Intelligence Overview

EPSS Score
0.3%
Top 83% exploitable
Data Quality
2 sources
Confidence: Low
NVD CVE.org EPSS

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.3%
Patch available No
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

Affected Products (CPE)NVD

cpe:2.3:a:codesys:control_rte_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_rte_sl_\(for_beckhoff_cx\):*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:control_win_sl:*:*:*:*:*:*:*:*
cpe:2.3:a:codesys:development_system:*:*:*:*:*:*:*:*

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Same weakness CWE-732 – Incorrect Permission Assignment for Critical Resource

View all
CVE-2017-9462 HIGH POC
8.8
CVE-2017-3006 HIGH POC
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CVE-2017-9602 CRITICAL POC
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CVE-2022-22960 HIGH POC
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CVE-2021-38085 HIGH POC
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CVE-2021-35449 HIGH POC
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CVE-2020-11855 HIGH POC
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CVE-2020-10883 HIGH POC
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Same technique Information Disclosure

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CVE-2019-2725 CRITICAL POC
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9.0
CVE-2013-2251 CRITICAL POC
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CVE-2017-5638 CRITICAL POC
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CVE-2025-24813 CRITICAL POC
9.8
CVE-2025-68613 HIGH POC
8.8
CVE-2015-1701 HIGH POC
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CVE-2017-0147 HIGH POC
7.5

References

Advisories & patches
ADVISORY https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17090&token=6cd08b169916366df31388d2e7ba58e7bce93508&download=

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