Is CVE-2015-0856 in the CISA KEV catalog?

No. CVE-2015-0856 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2015-0856?

CVE-2015-0856 has a CVSS v2 base score of 4.6 (MEDIUM).

What is the EPSS score for CVE-2015-0856?

CVE-2015-0856 has an EPSS score of 0.41% (33th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2015-0856?

Upgrade sddm on debian 11 to 0.12.0-5 or later.

CVE & CISA-KEV Catalog

CVE-2015-0856

MEDIUM

4.6

CVSS v2

NVD

Description

daemon/Greeter.cpp in sddm before 0.13.0 does not properly disable the KDE crash handler, which allows local users to gain privileges by crashing a greeter when using certain themes, as demonstrated by the plasma-workspace breeze theme.

CWE-264Permissions, Privileges, and Access Controls

How to fix

Remediation Available

sddmDebian

Fixed in:0.12.0-5CVE-2015-0856

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

0.41%probability of exploitation in 30 days

33rdpercentile

Low risk: more likely to be exploited than 33% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory3

Related Vulnerabilities

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2012-1456	Medium	4.3	100%	-	-
CVE-2012-1459	Medium	4.3	100%	-	Fix
CVE-2012-1446	Medium	4.3	100%	-	-
CVE-2012-1443	Medium	4.3	100%	-	-
CVE-2012-1442	Medium	4.3	99%	-	-
CVE-2012-1457	Medium	4.3	98%	-	Fix

Embed a live status badge for CVE-2015-0856

Markdown

[![CVE-2015-0856](https://tridentstack.com/cve/badge/CVE-2015-0856.svg)](https://tridentstack.com/cve/CVE-2015-0856)

HTML

<a href="https://tridentstack.com/cve/CVE-2015-0856"><img src="https://tridentstack.com/cve/badge/CVE-2015-0856.svg" alt="CVE-2015-0856"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

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.