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CVE-2007-5907

14
FAUCET Score

CVE-2007-5907 describes a denial-of-service vulnerability in Xen 3.1.1, where privileged guests can modify the CR4 TSC, leading to a system crash. This local vulnerability has a CVSS score of 4.7, indicating a medium attack complexity and high impact on availability. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this decade-old flaw.

Impacted Technologies

VendorProductVersion(s)CPE
3.1.1CPE matchmatch criteria
cpe:2.3:a:xensource_inc:xen:3.1.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.7MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
3.4
Impact Score
6.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.35%
Probability of exploitation in next 30 days
EPSS Percentile
27.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0035 is in the 37th percentile among its peer group of 1,595 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 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: kernel-0:2.6.18-92.1.18.el5
View patch

Vendor Advisories (1)

redhatCVE-2007-5907Important

kernel-xen 3.1.1 does not prevent modification of the CR4 TSC from applications (DoS possible)

Oct 29, 2007

References

lists.opensuse.org / opensuse-security-announce/2008-01/msg00002.html
lists.xensource.com / archives/html/xen-devel/2007-10/msg00932.html
secunia.com / advisories/28405
secunia.com / advisories/28412
secunia.com / advisories/28636
secunia.com / advisories/32485
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10380
novell.com / linux/security/advisories/suse_security_summary_report.html
redhat.com / support/errata/RHSA-2008-0957.html
securityfocus.com / bid/27219