CVE-2026-44469
HIGHIncorrect Default Permissions in CODESYS Development System
Title source: cnaDescription
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.
References (1)
Core 1
Core References
Scores
CVSS v3
7.8
EPSS
0.0001
EPSS Percentile
1.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-276
Status
published
Products (1)
CODESYS/CODESYS Development System
3.0.0.0 - 3.5.22.20
Published
May 26, 2026
Tracked Since
May 26, 2026