CVE-2012-4551

Use-after-free vulnerability in libunity-webapps before 2.4.1 allows remote attackers to cause a denial of service (memory corruption and crash) and possibly execute arbitrary code via a crafted web site, related to "certain hash tables."

Published: 2012-11-30 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-4551 is rated Moderate Risk (57.1/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.95%). 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-2012-4551

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 2.00% 1.95% -0.05%
2 2025-03-30 3.14% 2.00% -1.14%
3 2025-03-29 — 3.14% —

Full EPSS history (12 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-4551

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2012-4551

OS Trackers for CVE-2012-4551

vendor priority summary link
ubuntu medium CVE-2012-4551 medium priority: Ubuntu including 1 source packages (libunity-webapps), 6 status rows across 6 suites (hardy, lucid, oneiric, precise, quantal, upstream): DNE 4, needs-triage 1, released 1. https://ubuntu.com/security/CVE-2012-4551

Affected software / configurations for CVE-2012-4551

Vendor Product Version Raw CPE
ps_project_management_team libunity-webapps <= 2.4.0 cpe:2.3:a:ps_project_management_team:libunity-webapps:*:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 0.02 cpe:2.3:a:ps_project_management_team:libunity-webapps:0.02:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 0.2.1 cpe:2.3:a:ps_project_management_team:libunity-webapps:0.2.1:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 0.3 cpe:2.3:a:ps_project_management_team:libunity-webapps:0.3:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 0.3.1 cpe:2.3:a:ps_project_management_team:libunity-webapps:0.3.1:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.0 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.0:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.0.1 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.0.1:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.1 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.1:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.3 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.3:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.3.1 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.3.1:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.3.2 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.3.2:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.3.3 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.3.3:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.3.4 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.3.4:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.3.5 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.3.5:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.3.6 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.3.6:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.3.7 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.3.7:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.3.8 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.3.8:*:*:*:*:*:*:*
ps_project_management_team libunity-webapps 2.3.9 cpe:2.3:a:ps_project_management_team:libunity-webapps:2.3.9:*:*:*:*:*:*:*

References for CVE-2012-4551

cvelogic Threat Intelligence