How severe is CVE-2012-5377?

CVE-2012-5377 has a CVSS 2.0 base score of 6.0, rated medium severity.

Is CVE-2012-5377 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-5377?

CVE-2012-5377 affects Activestate Activeperl. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2012-5377?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2012-5377 published?

CVE-2012-5377 was published on 2012-10-11 and last updated on 2026-06-16.

CVE-2012-5377

CVE-2012-5377 is a medium-severity vulnerability in Activestate Activeperl with a CVSS 2.0 base score of 6.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Medium (CVSS 2.0 base score 6.0)
EPSS exploit prediction: 1% (66th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Activestate Activeperl
Published: 2012-10-11
Last modified: 2026-06-16

Description

Untrusted search path vulnerability in the installation functionality in ActivePerl 5.16.1.1601, when installed in the top-level C:\ directory, allows local users to gain privileges via a Trojan horse DLL in the C:\Perl\Site\bin directory, which is added to the PATH system environment variable, as demonstrated by a Trojan horse wlbsctrl.dll file used by the "IKE and AuthIP IPsec Keying Modules" system service in Windows Vista SP1, Windows Server 2008 SP2, Windows 7 SP1, and Windows 8 Release Preview.

Frequently asked questions

What is CVE-2012-5377?: Untrusted search path vulnerability in the installation functionality in ActivePerl 5.16.1.1601, when installed in the top-level C:\ directory, allows local users to gain privileges via a Trojan horse DLL in the C:\Perl\Site\bin directory, which is added to the PATH system environment variable, as demonstrated by a Trojan horse wlbsctrl.dll file used by the "IKE and AuthIP IPsec Keying Modules" system service in Windows Vista SP1, Windows Server 2008 SP2, Windows 7 SP1, and Windows 8 Release Preview.
How severe is CVE-2012-5377?: CVE-2012-5377 has a CVSS 2.0 base score of 6.0, rated medium severity.
Is CVE-2012-5377 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-5377?: CVE-2012-5377 affects Activestate Activeperl. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-5377?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-5377 published?: CVE-2012-5377 was published on 2012-10-11 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:activestate:activeperl:5.16.1.1601:*:*:*:*:*:*:*

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