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CVE-2015-8552

14
FAUCET Score

CVE-2015-8552 describes a denial-of-service vulnerability in the PCI backend driver of Xen, affecting systems running Linux kernels 3.1.x through 4.3.x as the driver domain. Specifically, it impacts canonical, debian, novell, and xen products. A local guest administrator can trigger a continuous stream of WARN messages, leading to disk consumption and a denial of service, by manipulating MSI/MSI-X capable PCI devices. The vulnerability has a CVSS v3.0 score of 4.4 (Medium), indicating a local attack vector with low complexity, high privileges required, and a high impact on availability. There is no impact on confidentiality or integrity. Currently, there is no evidence of active exploitation, and no public exploit code is available on platforms like Metasploit, Nuclei, or ExploitDB. Community discussion and media coverage for this CVE are minimal, suggesting low public awareness and attention.

Impacted Technologies

VendorProductVersion(s)CPE
3.1.3CPE matchmatch criteria
cpe:2.3:o:xen:xen:3.1.3:*:*:*:*:*:*:*
3.1.4CPE matchmatch criteria
cpe:2.3:o:xen:xen:3.1.4:*:*:*:*:*:*:*
3.2.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:3.2.0:*:*:*:*:*:*:*
3.2.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:3.2.1:*:*:*:*:*:*:*
3.2.2CPE matchmatch criteria
cpe:2.3:o:xen:xen:3.2.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

4.4MEDIUM

CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
0.8
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.45%
Probability of exploitation in next 30 days
EPSS Percentile
36.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0045 is in the 86th percentile among its peer group of 3,720 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, 0.0 Bluesky, 0.0 Mastodon, and 0.1 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 Patches (1)

redhatend of lifevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-xen

Vendor Advisories (1)

redhatCVE-2015-8552Moderate

xen: Linux pciback missing sanity checks leading to crash (XSA-157)

Dec 17, 2015

References

lists.opensuse.org / opensuse-security-announce/2016-03/msg00094.html
lists.opensuse.org / opensuse-security-announce/2016-04/msg00045.html
lists.opensuse.org / opensuse-security-announce/2016-06/msg00059.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-07/msg00005.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00000.html
Third Party Advisory
lists.opensuse.org / opensuse-security-announce/2016-08/msg00044.html
lists.opensuse.org / opensuse-security-announce/2016-08/msg00055.html
security.gentoo.org / glsa/201604-03
debian.org / security/2016/dsa-3434
securityfocus.com / bid/79546
Third Party AdvisoryVDB Entry
securitytracker.com / id/1034480
Third Party AdvisoryVDB Entry
xenbits.xen.org / xsa/advisory-157.html
Vendor Advisory