Is CVE-2015-4625 in the CISA KEV catalog?

No. CVE-2015-4625 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-4625?

CVE-2015-4625 has a CVSS v2 base score of 4.6 (MEDIUM).

What is the EPSS score for CVE-2015-4625?

CVE-2015-4625 has an EPSS score of 0.40% (32th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-4625?

Upgrade policykit-1 on debian 11 to 0.105-12 or later. Fixes are available for 3 affected products.

CVE & CISA-KEV Catalog

CVE-2015-4625

MEDIUM

4.6

CVSS v2

NVD

Description

Integer overflow in the authentication_agent_new_cookie function in PolicyKit (aka polkit) before 0.113 allows local users to gain privileges by creating a large number of connections, which triggers the issuance of a duplicate cookie value.

CWE-189

How to fix

Remediation Available

policykit-1Debian

Fixed in:0.105-12CVE-2015-4625

libpolkit-backend-1-0Ubuntu

Fixed in:0.105-4ubuntu3.14.04.2USN-3717-1

Fixed in:0.105-14.1ubuntu0.1USN-3717-1

Fixed in:0.105-20ubuntu0.18.04.1USN-3717-1

policykit-1Ubuntu

Fixed in:0.105-4ubuntu3.14.04.2USN-3717-1

Fixed in:0.105-14.1ubuntu0.1USN-3717-1

Fixed in:0.105-20ubuntu0.18.04.1USN-3717-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

0.40%probability of exploitation in 30 days

32ndpercentile

Low risk: more likely to be exploited than 32% of all known CVEs.

References

Other references12

Related Vulnerabilities

Other CWE-189 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-1538	High	10.0	99%	-	-
CVE-2006-3747	High	7.6	96%	-	Fix
CVE-2007-0071	High	9.3	93%	-	-
CVE-2015-3829	High	10.0	90%	-	-
CVE-2015-3864	High	10.0	87%	-	-
CVE-2015-1539	High	10.0	86%	-	-

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.