Security readout for executives and security teams
CVE-2012-6639 affects old cloud-init releases before 0.7.0. In certain EC2 instance-data handling scenarios, cloud-init could trust data from an untrusted system, creating a privilege-elevation risk. The public bundle provides limited severity detail, so urgency depends on whether legacy images still run this version. Most likely exposure is legacy Linux cloud images, appliances, or long-lived instances using cloud-init before 0.7.0. Modern supported distributions are less likely affected, but vendor backport status must be checked directly. Treat this as a legacy exposure cleanup item unless vulnerable cloud-init versions are still present. Prioritize golden images and internet-adjacent cloud workloads where metadata trust boundaries are weak or unclear. Mitigation focus: Inventory cloud-init versions across images, templates, and running instances.; Replace cloud-init before 0.7.0 with vendor-supported fixed packages.; Check Debian, Red Hat, and SUSE advisories for backported fixes..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2012-6639 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://security-tracker.debian.org/tracker/CVE-2012-6639CVE reference · x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2012-6639CVE reference · x_refsource_MISC
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2012-6639CVE reference · x_refsource_MISC
- https://access.redhat.com/security/cve/cve-2012-6639CVE reference · x_refsource_MISC
- https://www.securityfocus.com/bid/66019/referencesCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.