CVE-2026-2364

HIGH
2026-03-10 [email protected]
7.3
CVSS 3.1
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CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

2
Analysis Generated
Mar 12, 2026 - 21:55 vuln.today
CVE Published
Mar 10, 2026 - 17:39 nvd
HIGH 7.3

Tags

Race Condition

Description

If a legitimate user confirms a self-update prompt or initiate an installation of a CODESYS Development System, a low privileged local attacker can gain elevated rights due to a TOCTOU vulnerability in the CODESYS installer.

Analysis

Privilege escalation in CODESYS Development System installer exploits a time-of-check-time-of-use (TOCTOU) race condition, allowing a low-privileged local attacker to gain elevated rights when a legitimate user initiates a system update or installation. An attacker with local access can manipulate files during the installation process window to execute arbitrary code with elevated privileges. …

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Remediation

Within 24 hours: Inventory all CODESYS Development System installations and identify machines with local user access. Within 7 days: Restrict CODESYS installer execution to trusted administrators only, disable auto-update features, and implement application whitelisting to block unauthorized elevation attempts. …

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Priority Score

37
Low Medium High Critical
KEV: 0
EPSS: +0.0
CVSS: +36
POC: 0

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CVE-2026-2364 vulnerability details – vuln.today
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