Is CVE-2012-4691 being actively exploited?

CVE-2012-4691 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-4691?

CVE-2012-4691 has a CVSS 2.0 base score of 3.3 (LOW).

CVE-2012-4691

LOW · CVSS 3.3EPSS 0.9%EU EUVD

Memory leak in Siemens Automation License Manager (ALM) 4.x and 5.x before 5.2 allows remote attackers to cause a denial of service (memory consumption) via crafted packets.

Key facts

CVSS score: 3.3 (v2.0)
Severity: LOW
CVSS vector: AV:A/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-399
EPSS score: 0.9% (60th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2012-4616)
Published: December 18, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2012-4616 in the EU Vulnerability Database. Last updated in EUVD on May 23, 2025.

View on the EU Vulnerability Database

Affected products

siemens / automation license manager
siemens / automation license manager
siemens / automation license manager
siemens / automation license manager

References

http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-783261.pdf(Vendor Advisory)
http://www.us-cert.gov/control_systems/pdf/ICSA-12-349-01.pdf(US Government Resource)

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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