CVE-2026-44469
Incorrect Default Permissions in CODESYS Development System
- State
- Published
- Severity
- 8.5 High
- Published
- May 26, 2026
- Updated
- May 26, 2026
- Reserved
- May 6, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 4.0 | 8.5 High | CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | CERTVDE |
| 3.1 | 7.8 High | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CERTVDE |
Weaknesses
- CWE-276 Incorrect Default Permissions
Affected Products
| Product | Versions |
|---|---|
CODESYS Development SystemCODESYS |
|
References
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