CVE-2026-44469

Incorrect Default Permissions in CODESYS Development System

HIGH
7
CVSS Score
Published: May 26, 2026 at 06:39 AM UTC
Updated: July 24, 2026 at 11:23 AM UTC
1 product affected across 1 vendorDevelopment System

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Severity
HIGH7
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

The affected product extracts installation files to a temporary directory with incorrect default permissions during administrative installation. A low-privileged local attacker can exploit a TOCTOU race condition with a practical time window to replace verified files with malicious ones before installation, resulting in local privilege escalation.

Affected

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

v < 3.5.22.203.0.0.0 ≤ v < 3.5.22.203.0.0.0
Affected range stops below 3.5.22.20, 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)

Third Party Advisory
Source: cverecord
https://www.certvde.com/en/advisories/VDE-2026-055/

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

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

Quick Info

StatusANALYZED
CWE
CWE-276

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