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CVE-2008-4405

27
FAUCET Score

CVE-2008-4405 describes a vulnerability in Xen 3.0.3, specifically within its xend component, where guest virtual machines can write to sensitive xenstore directory trees like /local/domain. This flaw allows guest OS users to cause a denial of service and potentially other unspecified impacts. With a CVSS score of 7.2, this vulnerability is considered highly severe, allowing a local attacker with low complexity to achieve complete confidentiality, integrity, and availability compromise. While there is an ExploitDB entry (EDB-32446) for Xen 3.3 related to unsafe xenstore data storage, there is no evidence of active exploitation, Metasploit modules, or significant community discussion for this specific CVE.

Impacted Technologies

VendorProductVersion(s)CPE
3.0.3CPE matchmatch criteria
cpe:2.3:a:citrix:xen:3.0.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.2HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.04%
Probability of exploitation in next 30 days
EPSS Percentile
60.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
ExploitDB: EDB-32446 · Sep 30, 2008
This CVE's current EPSS score of 0.0104 is in the 79th percentile among its peer group of 3,237 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, 0.0 Mastodon, and 0.5 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

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xen-0:3.0.3-64.el5_2.9
View patch

Vendor Advisories (1)

redhatCVE-2008-4405Moderate

xen: Multiple unsafe uses of guest-writable data from xenstore

Sep 30, 2008

References

lists.opensuse.org / opensuse-security-announce/2009-09/msg00001.html
lists.xensource.com / archives/html/xen-devel/2008-09/msg00992.html
lists.xensource.com / archives/html/xen-devel/2008-09/msg00994.html
openwall.com / lists/oss-security/2008/09/30/6
bugzilla.redhat.com / show_bug.cgi
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/32064
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10627
mandriva.com / security/advisories
openwall.com / lists/oss-security/2008/10/04/3
redhat.com / support/errata/RHSA-2009-0003.html
securityfocus.com / bid/31499
securitytracker.com / id
vupen.com / english/advisories/2008/2709
xenbits.xensource.com / staging/xen-3.3-testing.hg
Exploit