CVE-2012-2654

Exp

The (1) EC2 and (2) OS APIs in OpenStack Compute (Nova) Folsom (2012.2), Essex (2012.1), and Diablo (2011.3) do not properly check the protocol when security groups are created and the network protocol is not specified entirely in lowercase, which allows remote attackers to bypass intended access restrictions.

Published: 2012-06-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2012-2654 is rated High Exploit Risk (62.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.63%). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.45% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2012-2654

EDB-ID Source Kind Published Link
nvd_ref exploit_tag Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2012-2654

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 1.18% 2.63% +1.45%
2 2025-06-07 2.15% 1.18% -0.97%
3 2025-03-30 2.15%

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-2654

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
8.6 2.9 [email protected]

Weakness enumeration for CVE-2012-2654

GitHub Security Advisory for CVE-2012-2654

GHSA-46r8-9cj7-pw6g · Severity: medium · Ecosystem: pip — OpenStack Compute (Nova) Improper Input Validation

OS Trackers for CVE-2012-2654

vendor priority summary link
debian not yet assigned CVE-2012-2654 not yet assigned priority: Debian including 1 source packages (nova), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-2654
ubuntu low CVE-2012-2654 low priority: Ubuntu including 1 source packages (nova), 7 status rows across 7 suites (hardy, lucid, natty, oneiric, precise, quantal, upstream): released 3, DNE 2, ignored 1, not-affected 1. https://ubuntu.com/security/CVE-2012-2654

Affected software / configurations for CVE-2012-2654

Vendor Product Version Raw CPE
openstack compute 2012.2 cpe:2.3:a:openstack:compute:2012.2:*:*:*:*:*:*:*
openstack diablo 2011.3 cpe:2.3:a:openstack:diablo:2011.3:*:*:*:*:*:*:*
openstack essex 2012.1 cpe:2.3:a:openstack:essex:2012.1:*:*:*:*:*:*:*

References for CVE-2012-2654

cvelogic Threat Intelligence