CVE-2023-49676
CODESYS: Use after free vulnerability through corrupted project files
An unauthenticated local attacker may trick a user to open corrupted project files to crash the system due to use after free vulnerability.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
CODESYS: Use after free vulnerability through corrupted project files
An unauthenticated local attacker may trick a user to open corrupted project files to crash the system due to use after free vulnerability.
- Record
CVE-2023-49676- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
EUVDEUVD-2023-53610
An unauthenticated local attacker may trick a user to open corrupted project files to crash the system due to use after free vulnerability.
- Record
EUVD-2023-53610- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-q4h3-rm8f-c8qr
An unauthenticated local attacker may trick a user to open corrupted project files to crash the...
An unauthenticated local attacker may trick a user to open corrupted project files to crash the system due to use after free vulnerability.
- Record
GHSA-q4h3-rm8f-c8qr- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
NVD
An unauthenticated local attacker may trick a user to open corrupted project files to crash the system due to use after free vulnerability.
- Record
CVE-2023-49676- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-416
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2023-49676 is a medium vulnerability (CVSS 5.5) in Codesys Development System V2.3, published May 6, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 7th percentile. No source names a fixed version.