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CVE-2014-6268

19
FAUCET Score

CVE-2014-6268 describes a denial-of-service vulnerability in Xen 4.4.x, where a local guest user can crash the host system. This is due to an uninitialized event channel control block when binding or moving an event to a different VCPU. The vulnerability has a CVSS score of 4.9, indicating a local attack vector with low complexity and a high impact on availability. There is no known exploit code available, nor any evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
4.4.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.4.0:*:*:*:*:*:*:*
4.4.0CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.4.0:rc1:*:*:*:*:*:*
4.4.1CPE matchmatch criteria
cpe:2.3:o:xen:xen:4.4.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.9MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.41%
Probability of exploitation in next 30 days
EPSS Percentile
34.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0042 is in the 63rd percentile among its peer group of 3,052 CVEs.

Social Chatter

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 Advisories (1)

redhatCVE-2014-6268Moderate

kernel: xen: Mishandling of uninitialised FIFO-based event channel control blocks (xsa107)

Sep 9, 2014

References

exchange.xforce.ibmcloud.com / vulnerabilities/95837
securityfocus.com / bid/69753
securitytracker.com / id/1030829
xenbits.xen.org / xsa/advisory-107.html
Vendor Advisory