CVE Intelligence
Medium

CVE-2012-5625 — Openstack nova: information leak in libvirt lvm-backed instances

OpenStack Compute (Nova) Folsom before 2012.2.2 and Grizzly, when using libvirt and LVM backed instances, does not properly clear physical volume (PV) content when reallocating for instances, which allows attackers to obtain sensitive information by reading the memory of the previous logical volume (LV).

Published Dec 26, 2012 · Updated Oct 30, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: redhat

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.
How the score was calculated
  • EPSS 2% (30-day exploitation probability)+12
  • Technical severity (medium)+3

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation
Not confirmed
Not in CISA KEV — an absence of record, not proof it is unexploited.
EPSS FIRST
2.02%
ahead of 81% of scored CVEs · Oct 30, 2026
Affects
OpenStack
Folsom and 3 more
CVSS base
6.5
Medium · 3 source(s)

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

  • Documented patch — www.ubuntu.com (NIST National Vulnerability Database)
  • Documented patch — github.com (NIST National Vulnerability Database)
  • Documented patch — github.com (NIST National Vulnerability Database)
  • Pip Nova: fixed in version 12.0.0a0 — github.com (GitHub Security Advisories)

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

  1. Identify exposed assets running the affected vendor/product/version combinations (OpenStack Folsom, OpenStack Grizzly, Red Hat OpenStack Folsom for RHEL 6…).
  2. Apply the fixed version or the patch documented under Remediation.
  3. Search available logs for exploit probes, errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

VendorProductVersionsStatusSource
OpenStack Folsom version 2012.2 Vulnerable NIST National Vulnerability Database
OpenStack Grizzly versions not specified by the source Vulnerable NIST National Vulnerability Database
Red Hat OpenStack Folsom for RHEL 6 versions not specified by the source Vulnerable CVE Program (cve.org) e CISA ADP
Pip Nova < 12.0.0a0 Vulnerable GitHub Security Advisories

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

ScoreVersionSeverityExpl.ImpactScored by
6.5 CVSS 3.1 Medium 2.0 4.0 secalert@redhat.com via NIST National Vulnerability Database
6.5 CVSS 3.1 Medium — — redhat via CVE Program (cve.org) e CISA ADP
4.3 CVSS 2.0 Medium 8.6 2.9 nvd@nist.gov via NIST National Vulnerability Database
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N (score shown at the top: secalert@redhat.com)

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-212

Other CVEs with this weakness →

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

  • Local/physical vector: focus on endpoint telemetry (EDR) from affected hosts.
endpoint telemetry (EDR)

Timeline

What happened to this CVE, newest first.

  • 2026
  • Fix documented
    Oct 30, 2026 · GitHub Security Advisories
  • Affected products added · pip/nova
    Oct 30, 2026 · GitHub Security Advisories
  • Affected products added · red hat/openstack folsom for rhel 6
    Oct 30, 2026 · CVE Program (cve.org) e CISA ADP
  • Record published
    Oct 30, 2026
  • Fix documented
    Oct 30, 2026 · NIST National Vulnerability Database
  • Affected products added · openstack/folsom, openstack/grizzly
    Oct 30, 2026 · NIST National Vulnerability Database
  • CVSS changed · 6.5
    Oct 30, 2026 · NIST National Vulnerability Database
  • Source status changed · → Modified
    Oct 30, 2026 · NIST National Vulnerability Database
  • Record created in this database
    Oct 30, 2026 · Alertas do Telegram
  • 2012
  • CVE published
    Dec 26, 2012 · redhat

Source activity

Repeated readings are counted rather than listed.

  • 2× References added · Oct 30, 2026 – Oct 30, 2026
  • 1× Official description updated · Oct 30, 2026 – Oct 30, 2026

References

16 on the record

Elsewhere on this site

OpenStack
every CVE for this vendor
CWE-212
other pages naming this weakness

Related CVEs (same products)

  • CVE-2026-46448 OpenStack Nova: Nova scheduler hint injection bypasses Placement resource claims and scheduling constraints Jun 16, 2026
  • CVE-2013-1815 Packstack: red hat openstack: packstack: unauthorized system modification via insecure answer file creation Apr 10, 2013
  • CVE-2013-1840 Openstack glance: swift: s3: openstack glance: information disclosure of backend credentials via cached image request Mar 22, 2013
  • CVE-2013-0261 Packstack: packstack: arbitrary file overwrite via symlink attack Mar 8, 2013
  • CVE-2013-0266 manifests/base.pp in the puppetlabs-cinder module, as used in PackStack, uses world-readable... Mar 8, 2013
  • CVE-2012-5571 Openstack keystone: openstack keystone: authorization bypass via improper ec2 token handling Dec 17, 2012

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

  • No CISA SSVC assessment.
  • No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
  • No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
  • No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2012-5625 is "Openstack nova: information leak in libvirt lvm-backed instances", rated Medium. It affects Folsom (OpenStack); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 6.5 describes technical severity. EPSS 2.02% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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