CVE-2022-22516

CODESYS driver SysDrv3S allows SYSTEM users on Microsoft Windows to read and write in restricted memory space.

7.8 High

CVE-2022-22516 is a high vulnerability (CVSS 7.8) in Codesys Control Rte (for Beckhoff Cx) Sl, published April 7, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.26%, the 18th percentile. No source names a fixed version.

The SysDrv3S driver in the CODESYS Control runtime system on Microsoft Windows allows any system user to read and write within restricted memory space.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: High
Availability: High

Exploit likelihood

0.26%Down 0.6 points since Apr 9, 2022

What each source reports

CVE List Score used 7.8

CODESYS driver SysDrv3S allows SYSTEM users on Microsoft Windows to read and write in restricted memory space.

The SysDrv3S driver in the CODESYS Control runtime system on Microsoft Windows allows any system user to read and write within restricted memory space.

Record: CVE-2022-22516
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-732
Updated: 2026-11-02

EUVDEUVD-2022-27662 7.8

The SysDrv3S driver in the CODESYS Control runtime system on Microsoft Windows allows any system user to read and write within restricted memory space.

Record: EUVD-2022-27662
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-wg22-wcgm-8m72 7.8

The SysDrv3S driver in the CODESYS Control runtime system on Microsoft Windows allows any system...

The SysDrv3S driver in the CODESYS Control runtime system on Microsoft Windows allows any system user to read and write within restricted memory space.

Record: GHSA-wg22-wcgm-8m72
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness: CWE-732
Updated: 2026-11-02

NVD 7.8

The SysDrv3S driver in the CODESYS Control runtime system on Microsoft Windows allows any system user to read and write within restricted memory space.

Record: CVE-2022-22516
CVSS 3.1: 7.8 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0: 7.2 HighAV:L/AC:L/Au:N/C:C/I:C/A:C
Weakness: CWE-732
Updated: 2026-11-02

Affected products

History

History
When	Changed	Sources
2026-11-03	aliases, published	EUVD
2026-11-02	created	CVE List, GitHub Advisories, NVD

Attack profile

How easy it is to exploit

What an attacker can affect

Exploit likelihood

What each source reports

Affected products

History

References