CVE-2015-3255

The polkit_backend_action_pool_init function in polkitbackend/polkitbackendactionpool.c in PolicyKit (aka polkit) before 0.113 might allow local users to gain privileges via duplicate action IDs in action descriptions.

Published: 2015-10-26 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2015-3255 is rated Low Risk (28.5/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.36%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2015-3255

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 0.10% 0.36% +0.26%
2 2025-07-12 0.04% 0.10% +0.06%
3 2025-06-26 0.04%

Full EPSS history (6 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-3255

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
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.
3.9 6.4 [email protected]

Weakness enumeration for CVE-2015-3255

OS Trackers for CVE-2015-3255

vendor priority summary link
debian not yet assigned CVE-2015-3255 not yet assigned priority: Debian including 1 source packages (policykit-1), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2015-3255
gentoo normal CVE-2015-3255: 1 GLSA(s) (201611-07), 1 atom(s) (sys-auth/polkit); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-3255
redhat medium https://access.redhat.com/security/cve/CVE-2015-3255
suse medium CVE-2015-3255 severity moderate: SUSE including 308 source package names (PolicyKit, PolicyKit-32bit, …), 429 product×package rows across 77 product lines (Image SLES12-SP5-Azure-BYOS, Image SLES12-SP5-Azure-Basic-On-Demand, … (77 product lines)): Known Affected 231, Fixed 184, Known Not Affected 14. https://www.suse.com/security/cve/CVE-2015-3255/
ubuntu low CVE-2015-3255 low priority: Ubuntu including 1 source packages (policykit-1), 10 status rows across 10 suites (artful, bionic, precise, trusty, upstream, vivid, wily, xenial, yakkety, zesty): released 7, ignored 2, needs-triage 1. https://ubuntu.com/security/CVE-2015-3255

Affected software / configurations for CVE-2015-3255

Vendor Product Version Raw CPE
polkit_project polkit <= 0.112 cpe:2.3:a:polkit_project:polkit:*:*:*:*:*:*:*:*

References for CVE-2015-3255

cvelogic Threat Intelligence