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CVE-2015-0361

20
FAUCET Score

CVE-2015-0361 is a use-after-free vulnerability in Xen versions 4.2.x, 4.3.x, and 4.4.x, impacting products like openSUSE and Xen. This flaw allows remote domains to trigger a system crash, leading to a denial of service, through a crafted hypercall during HVM guest teardown. With a CVSS score of 7.8, it represents a high-severity risk due to its network-based attack vector and low attack complexity, resulting in a complete loss of availability. Despite its severity, there is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.2.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.0:*:*:*:*:*:*:*
4.2.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.1:*:*:*:*:*:*:*
4.2.2CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.2:*:*:*:*:*:*:*
4.2.3CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.3:*:*:*:*:*:*:*
4.2.4CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.2.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.8HIGH

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.51%
Probability of exploitation in next 30 days
EPSS Percentile
83.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0251 is in the 70th percentile among its peer group of 51,553 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, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2015-0361Moderate

kernel: xen crash due to use after free on hvm guest teardown (xsa116)

Jan 6, 2015

References

lists.fedoraproject.org / pipermail/package-announce/2015-January/148103.html
lists.fedoraproject.org / pipermail/package-announce/2015-January/148241.html
lists.opensuse.org / opensuse-security-announce/2015-02/msg00005.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2015-02/msg00010.html
Third Party Advisory
security.gentoo.org / glsa/201504-04
securityfocus.com / bid/71882
securitytracker.com / id/1031498
xenbits.xen.org / xsa/advisory-116.html
MitigationPatchVendor Advisory