How severe is CVE-2012-6137?

CVE-2012-6137 has a CVSS 2.0 base score of 4.3, rated medium severity.

Is CVE-2012-6137 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2012-6137?

CVE-2012-6137 primarily affects Redhat Enterprise Linux. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2012-6137?

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

When was CVE-2012-6137 published?

CVE-2012-6137 was published on 2013-05-21 and last updated on 2026-06-16.

CVE-2012-6137

CVE-2012-6137 is a medium-severity vulnerability in Redhat Enterprise Linux with a CVSS 2.0 base score of 4.3. 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-255.

Key facts

Severity: Medium (CVSS 2.0 base score 4.3)
EPSS exploit prediction: 1% (57th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-255
Affected product: Redhat Enterprise Linux
Published: 2013-05-21
Last modified: 2026-06-16

Description

rhn-migrate-classic-to-rhsm tool in Red Hat subscription-manager does not verify the Red Hat Network Classic server's X.509 certificate when migrating to a Certificate-based Red Hat Network, which allows remote man-in-the-middle attackers to obtain sensitive information such as user credentials.

Frequently asked questions

What is CVE-2012-6137?: rhn-migrate-classic-to-rhsm tool in Red Hat subscription-manager does not verify the Red Hat Network Classic server's X.509 certificate when migrating to a Certificate-based Red Hat Network, which allows remote man-in-the-middle attackers to obtain sensitive information such as user credentials.
How severe is CVE-2012-6137?: CVE-2012-6137 has a CVSS 2.0 base score of 4.3, rated medium severity.
Is CVE-2012-6137 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (57th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-6137?: CVE-2012-6137 primarily affects Redhat Enterprise Linux. In total, 10 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2012-6137?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-6137 published?: CVE-2012-6137 was published on 2013-05-21 and last updated on 2026-06-16.

References

Affected products (10)

cpe:2.3:o:redhat:enterprise_linux:5:*:server:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:5.0:*:client:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_eus:5.9.z:*:server:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_hpc_node:6:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_long_life:5.9:*:server:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_aus:6.4:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_server_eus:6.4.z:*:*:*:*:*:*:*
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*

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