Is CVE-2012-4406 being actively exploited?

CVE-2012-4406 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-4406?

CVE-2012-4406 has a CVSS 3.1 base score of 9.8 (CRITICAL).

CVE-2012-4406

CRITICAL · CVSS 9.8EPSS 6.6%EU EUVD

OpenStack Object Storage (swift) before 1.7.0 uses the loads function in the pickle Python module unsafely when storing and loading metadata in memcached, which allows remote attackers to execute arbitrary code via a crafted pickle object.

Key facts

CVSS score: 9.8 (v3.1)
Severity: CRITICAL
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-502
EPSS score: 6.6% (94th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2022-5311)
Published: October 22, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2022-5311 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

fedoraproject / fedora
openstack / swift
redhat / enterprise linux server
redhat / enterprise linux server
redhat / gluster storage management console
redhat / gluster storage server for on-premise
redhat / storage
redhat / storage for public cloud

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

Red Hat Enterprise Linux 5 OpenSSH-Server Cryptographic Module - Red Hat®, Inc. - FIPS 140 1384 - historical

References

http://lists.fedoraproject.org/pipermail/package-announce/2012-October/089472.html(Mailing List)
http://rhn.redhat.com/errata/RHSA-2012-1379.html(Third Party Advisory)
http://rhn.redhat.com/errata/RHSA-2013-0691.html(Not Applicable)
http://www.openwall.com/lists/oss-security/2012/09/05/16(Mailing List)
http://www.openwall.com/lists/oss-security/2012/09/05/4(Mailing List)
http://www.securityfocus.com/bid/55420(Broken Link)
https://bugs.launchpad.net/swift/+bug/1006414(Issue Tracking, Patch)
https://bugzilla.redhat.com/show_bug.cgi?id=854757(Issue Tracking, Patch)
https://exchange.xforce.ibmcloud.com/vulnerabilities/79140(Third Party Advisory, VDB Entry)
https://github.com/openstack/swift/commit/e1ff51c04554d51616d2845f92ab726cb0e5831a(Patch)
https://launchpad.net/swift/+milestone/1.7.0(Release Notes)

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

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