CVE-2012-4406

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 6.5%, top 7% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 7%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

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.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
51(Track)
EG Risk 51/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation7% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
93.1%
KEV
Not listed

Published

October 22, 2012

Last Modified

April 29, 2026

Advisory Details (9)

Auto-updated May 10, 2026
Patch available. Sources: redhat.
generic

Do not use pickle for serialization in memcache, but JSON · openstack/swift@e1ff51c · GitHub

https://github.com/openstack/swift/commit/e1ff51c04554d51616d2845f92ab726cb0e5831a
generic

IBM X-Force Exchange

https://exchange.xforce.ibmcloud.com/vulnerabilities/79140
redhat Patch Available

854757 – (CVE-2012-4406) CVE-2012-4406 Openstack-Swift: insecure use of python pickle()

https://bugzilla.redhat.com/show_bug.cgi?id=854757
generic

Bug #1006414 “Insecure loads()” : Bugs : OpenStack Object Storage (swift)

https://bugs.launchpad.net/swift/+bug/1006414
generic
http://www.securityfocus.com/bid/55420
generic

oss-security - CVE-Request: openstack pickle de-serialization

http://www.openwall.com/lists/oss-security/2012/09/05/4
generic

oss-security - Re: CVE-Request: openstack pickle de-serialization

http://www.openwall.com/lists/oss-security/2012/09/05/16
generic
http://rhn.redhat.com/errata/RHSA-2013-0691.html
generic
http://rhn.redhat.com/errata/RHSA-2012-1379.html

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntupython-swift (1.8.0-0ubuntu1.2) @ raring2026-05-20ubuntu
redhatvdsm-0:4.9.6-20.el6rhs2013-03-28redhat
redhatopenstack-swift-0:1.4.8-5.el62012-10-16redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
swift1.0.21.7.0—

All Vendor Advisories

(3)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 12× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 109 total refreshes for this CVE.

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Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2012-4406?
CVE-2012-4406 is a critical vulnerability published on October 22, 2012. 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.
When was CVE-2012-4406 disclosed?
CVE-2012-4406 was first published in the National Vulnerability Database on October 22, 2012, with the most recent update on April 29, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2012-4406 actively exploited?
CVE-2012-4406 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 93.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2012-4406?
CVE-2012-4406 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2012-4406?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2012-4406, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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