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CVE-2018-10981

22
FAUCET Score

CVE-2018-10981 is a denial-of-service vulnerability affecting Xen through version 4.10.x, specifically impacting x86 HVM guest operating systems. An attacker with low privileges on a guest OS can trigger an infinite loop in the host OS by manipulating QEMU device model state transitions. This vulnerability has a CVSS score of 6.5 (Medium) due to its local attack vector and high impact on availability, but it has low attack complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
7.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
8.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
<= 4.10.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
4.0
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.44%
Probability of exploitation in next 30 days
EPSS Percentile
36.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0044 is in the 90th percentile among its peer group of 15,938 CVEs.

Social Chatter

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 Advisories (1)

redhatCVE-2018-10981Moderate

xen: qemu may drive Xen into unbounded loop (XSA-262)

May 8, 2018

References

openwall.com / lists/oss-security/2018/05/08/3
Mailing ListPatchThird Party Advisory
lists.debian.org / debian-lts-announce/2018/05/msg00015.html
Mailing ListThird Party Advisory
lists.debian.org / debian-lts-announce/2018/10/msg00021.html
Mailing ListThird Party Advisory
security.gentoo.org / glsa/201810-06
Third Party Advisory
debian.org / security/2018/dsa-4201
Third Party Advisory
xenbits.xen.org / xsa/advisory-262.html
PatchVendor Advisory
securityfocus.com / bid/104149
Third Party AdvisoryVDB Entry