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CVE-2015-0856

14
FAUCET Score

CVE-2015-0856 describes a local privilege escalation vulnerability in SDDM versions prior to 0.13.0, affecting Fedora and SDDM Project products. An attacker can exploit this by crashing the greeter using specific themes, such as plasma-workspace breeze, due to improper disabling of the KDE crash handler. This vulnerability has a CVSS score of 4.6 (AV:L/AC:L/Au:N/C:P/I:P/A:P), indicating low attack complexity and local access required, with potential for partial confidentiality, integrity, and availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
22CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:22:*:*:*:*:*:*:*
<= 0.12.0CPE matchmatch criteria
cpe:2.3:a:sddm_project:sddm:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

AV:L/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
33.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0041 is in the 63rd percentile among its peer group of 3,048 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

github_advisoryvendor investigatingvia nvd_reference
View patch

References

lists.fedoraproject.org / pipermail/package-announce/2015-November/171443.html
Third Party Advisory
github.com / sddm/sddm/commit/4cfed6b0a625593fb43876f04badc4dd99799d86
Vendor Advisory
github.com / sddm/sddm/wiki/0.13.0-Release-Announcement
Vendor Advisory
openwall.com / lists/oss-security/2015/10/14/2
Mailing ListThird Party Advisory
securityfocus.com / bid/77099
Third Party AdvisoryVDB Entry