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CVE-2011-3262

13
FAUCET Score

CVE-2011-3262 is a denial-of-service vulnerability in Xen versions 3.2, 3.3, 4.0, and 4.1, specifically within the xc_dom_bzimageloader.c component, affecting Citrix Xen products. A local attacker can exploit a lack of error checking in the decompression loop to trigger an infinite loop in management software, leading to resource exhaustion in the management domain. The vulnerability has a low severity CVSS score of 2.1 (AV:L/AC:L/Au:N/C:N/I:N/A:P), indicating local access, low attack complexity, and a partial availability impact. There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
3.2.0CPE matchmatch criteria
cpe:2.3:a:citrix:xen:3.2.0:*:*:*:*:*:*:*
3.3.0CPE matchmatch criteria
cpe:2.3:a:citrix:xen:3.3.0:*:*:*:*:*:*:*
4.0.0CPE matchmatch criteria
cpe:2.3:a:citrix:xen:4.0.0:*:*:*:*:*:*:*
4.1.0CPE matchmatch criteria
cpe:2.3:a:citrix:xen:4.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.1LOW

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0033 is in the 18th percentile among its peer group of 2,096 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.6 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: xen-0:3.0.3-120.el5_6.2
View patch

Vendor Advisories (1)

redhatCVE-2011-3262Important

xen: insufficiencies in pv kernel image validation

May 9, 2011

References

lists.xensource.com / archives/html/xen-devel/2011-05/msg00483.html
Patch
lists.xensource.com / archives/html/xen-devel/2011-05/msg00491.html
Patch
secunia.com / advisories/55082
security.gentoo.org / glsa/glsa-201309-24.xml
exchange.xforce.ibmcloud.com / vulnerabilities/69381