CVE-2011-4531

Siemens Automation License Manager (ALM) 4.0 through 5.1+SP1+Upd1 allows remote attackers to...

5.0 MediumPublic exploit

Siemens Automation License Manager (ALM) 4.0 through 5.1+SP1+Upd1 allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted content in a (1) get_target_ocx_param or (2) send_target_ocx_param command.

Exploit likelihood

8.41%Up 7.2 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2011-4531
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness: CWE-20
Updated: 2026-11-02

CVE List No score

Record: CVE-2011-4531
Updated: 2026-11-02

EUVDEUVD-2011-4457 No score

Record: EUVD-2011-4457
Updated: 2026-11-03

GitHub AdvisoriesGHSA-px66-m46c-vmhx No score

Siemens Automation License Manager (ALM) 4.0 through 5.1+SP1+Upd1 allows remote attackers to...

Record: GHSA-px66-m46c-vmhx
Weakness: CWE-20
Updated: 2026-11-02

Affected products

siemens automation license manager

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
Exploit-DB	siemens automation license manager 500.0.122.1 - Multiple Vulnerabilities	2011-11-28

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, Exploit-DB, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2011-4531 is a medium vulnerability (CVSS 5.0) in Siemens Automation License Manager, published January 8, 2012. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 8.41%, the 95th percentile. No source names a fixed version.