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CVE-2011-0465

31
FAUCET Score

CVE-2011-0465 describes a critical vulnerability in xrdb versions prior to 1.0.9, affecting X.Org X11R7.6 and earlier, including specific Matthias Hopf X11 and xrdb products. This flaw allows remote attackers to execute arbitrary commands by injecting shell metacharacters into hostnames received via DHCP or XDMCP messages. With a CVSS score of 9.3, this vulnerability is highly severe due to its network-based attack vector, medium attack complexity, and complete compromise of confidentiality, integrity, and availability. Despite its high severity, there is no public exploit code available, no evidence of active exploitation, and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.0.8CPE matchmatch criteria
cpe:2.3:a:matthias_hopf:xrdb:*:*:*:*:*:*:*:*
1.0.2CPE matchmatch criteria
cpe:2.3:a:matthias_hopf:xrdb:1.0.2:*:*:*:*:*:*:*
1.0.3CPE matchmatch criteria
cpe:2.3:a:matthias_hopf:xrdb:1.0.3:*:*:*:*:*:*:*
1.0.4CPE matchmatch criteria
cpe:2.3:a:matthias_hopf:xrdb:1.0.4:*:*:*:*:*:*:*
1.0.5CPE matchmatch criteria
cpe:2.3:a:matthias_hopf:xrdb:1.0.5:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

9.3HIGH

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

Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
10.0
CvssVersion
2.0

Exploit Intelligence

EPSS Score
5.78%
Probability of exploitation in next 30 days
EPSS Percentile
92.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0578 is in the 64th percentile among its peer group of 8,913 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 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 (4)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: xorg-x11-0:6.8.2-1.EL.67
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: xorg-x11-server-utils-0:7.1-5.el5_6.1
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: xorg-x11-server-utils-0:7.4-15.el6_0.1
View patch

Vendor Advisories (1)

redhatCVE-2011-0465Moderate

xorg: xrdb code execution via crafted X client hostname

Apr 5, 2011

References

cgit.freedesktop.org / xorg/app/xrdb/commit
Patch
lists.fedoraproject.org / pipermail/package-announce/2011-April/057928.html
lists.freedesktop.org / archives/xorg-announce/2011-April/001635.html
Patch
lists.freedesktop.org / archives/xorg-announce/2011-April/001636.html
Patch
lists.opensuse.org / opensuse-security-announce/2011-04/msg00002.html
bugzilla.redhat.com / show_bug.cgi
Patch
secunia.com / advisories/44010
secunia.com / advisories/44012
secunia.com / advisories/44040
Vendor Advisory
secunia.com / advisories/44082
secunia.com / advisories/44122
secunia.com / advisories/44123
secunia.com / advisories/44193
exchange.xforce.ibmcloud.com / vulnerabilities/66585
slackware.com / security/viewer.php
lwn.net / Articles/437150
debian.org / security/2011/dsa-2213
mandriva.com / security/advisories
redhat.com / support/errata/RHSA-2011-0432.html
redhat.com / support/errata/RHSA-2011-0433.html
securityfocus.com / bid/47189
securitytracker.com / id
ubuntu.com / usn/USN-1107-1
vupen.com / english/advisories/2011/0880
Vendor Advisory
vupen.com / english/advisories/2011/0889
vupen.com / english/advisories/2011/0906
vupen.com / english/advisories/2011/0929
vupen.com / english/advisories/2011/0966
vupen.com / english/advisories/2011/0975