CVE-2012-3542

OpenStack Keystone, as used in OpenStack Folsom before folsom-rc1 and OpenStack Essex (2012.1), allows remote attackers to add an arbitrary user to an arbitrary tenant via a request to update the user's default tenant to the administrative API. NOTE: this identifier was originally incorrectly assigned to an open redirect issue, but the correct identifier for that issue is CVE-2012-3540.

Published: 2012-09-05 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-3542 is rated Moderate Risk (46.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.48%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2012-3542

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 1.95% 2.48% +0.53%
2 2026-02-14 1.76% 1.95% +0.19%
3 2025-03-30 — 1.76% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-3542

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-2012-3542

GitHub Security Advisory for CVE-2012-3542

GHSA-gf2q-j2qq-pjf2 · Severity: high · Ecosystem: pip — OpenStack Keystone Allows Remote User Account Creation

OS Trackers for CVE-2012-3542

vendor priority summary link
debian not yet assigned CVE-2012-3542 not yet assigned priority: Debian including 1 source packages (keystone), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-3542
redhat high — https://access.redhat.com/security/cve/CVE-2012-3542
ubuntu medium CVE-2012-3542 medium priority: Ubuntu including 1 source packages (keystone), 6 status rows across 6 suites (hardy, lucid, natty, oneiric, precise, upstream): DNE 3, released 2, not-affected 1. https://ubuntu.com/security/CVE-2012-3542

Affected software / configurations for CVE-2012-3542

Vendor Product Version Raw CPE
openstack essex 2012.1 cpe:2.3:a:openstack:essex:2012.1:*:*:*:*:*:*:*
openstack horizon folsom-3 cpe:2.3:a:openstack:horizon:folsom-3:*:*:*:*:*:*:*

References for CVE-2012-3542

cvelogic Threat Intelligence