Is CVE-2013-0281 being actively exploited?

CVE-2013-0281 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2013-0281?

CVE-2013-0281 has a CVSS 2.0 base score of 4.3 (MEDIUM).

CVE-2013-0281

MEDIUM · CVSS 4.3EPSS 2.6%EU EUVD

Pacemaker 1.1.10, when remote Cluster Information Base (CIB) configuration or resource management is enabled, does not limit the duration of connections to the blocking sockets, which allows remote attackers to cause a denial of service (connection blocking).

Key facts

CVSS score: 4.3 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:M/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-399
EPSS score: 2.6% (85th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2013-0305)
Published: November 23, 2013
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-0305 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

clusterlabs / pacemaker
redhat / enterprise linux

References

http://rhn.redhat.com/errata/RHSA-2013-1635.html(Vendor Advisory)
https://bugzilla.redhat.com/show_bug.cgi?id=891922
https://github.com/ClusterLabs/pacemaker/commit/564f7cc2a51dcd2f28ab12a13394f31be5aa3c93(Exploit, Patch)

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

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