How severe is CVE-2011-4529?

CVE-2011-4529 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2011-4529 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2011-4529?

CVE-2011-4529 affects Siemens Automation License Manager. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2011-4529?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2011-4529 published?

CVE-2011-4529 was published on 2012-01-08 and last updated on 2026-06-16.

CVE-2011-4529

CVE-2011-4529 is a high-severity vulnerability in Siemens Automation License Manager with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 7% (94th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Siemens Automation License Manager
Published: 2012-01-08
Last modified: 2026-06-16

Description

Multiple buffer overflows in Siemens Automation License Manager (ALM) 4.0 through 5.1+SP1+Upd1 allow remote attackers to execute arbitrary code via a long serialid field in an _licensekey command, as demonstrated by the (1) check_licensekey or (2) read_licensekey command.

Frequently asked questions

What is CVE-2011-4529?: Multiple buffer overflows in Siemens Automation License Manager (ALM) 4.0 through 5.1+SP1+Upd1 allow remote attackers to execute arbitrary code via a long serialid field in an _licensekey command, as demonstrated by the (1) check_licensekey or (2) read_licensekey command.
How severe is CVE-2011-4529?: CVE-2011-4529 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2011-4529 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 7% (94th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2011-4529?: CVE-2011-4529 affects Siemens Automation License Manager. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2011-4529?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2011-4529 published?: CVE-2011-4529 was published on 2012-01-08 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:siemens:automation_license_manager:*:sp1:*:*:*:*:*:*

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