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CVE-2023-49676

CODESYS: Use after free vulnerability through corrupted project files

MEDIUM
5.5
CVSS Score
Published: May 6, 2024 at 11:09 AM UTC
Updated: June 17, 2026 at 06:36 AM UTC
1 product affected across 1 vendorDevelopment System

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

An unauthenticated local attacker may trick a user to open corrupted project files to crash the system due to use after free vulnerability.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Development System· Codesys
60%
v < 2.3.9.73
Affected range stops below 2.3.9.73, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: [email protected]
https://cert.vde.com/en/advisories/VDE-2024-024

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMCERTVDE
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-416

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