CVE-2011-0465

xrdb.c in xrdb before 1.0.9 in X.Org X11R7.6 and earlier allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a (1) DHCP or (2) XDMCP message.

Published: 2011-04-08 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-0465 is rated High Risk (75.5/100): CVSS Critical severity, with high exploitation likelihood (EPSS 18.04%, 95th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. EPSS rose +8.14% over the last day, indicating growing attacker interest. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2011-0465

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-04-08 9.90% 18.04% +8.14%
2 2025-07-27 9.44% 9.90% +0.46%
3 2025-03-30 — 9.44% —

Full EPSS history (9 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-0465

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 2.0 HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.6 10.0 [email protected]

Weakness enumeration for CVE-2011-0465

OS Trackers for CVE-2011-0465

vendor priority summary link
debian low CVE-2011-0465 low priority: Debian including 1 source packages (x11-xserver-utils), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-0465
gentoo high CVE-2011-0465: 1 GLSA(s) (201412-09), 25 atom(s) (app-admin/syslog-ng, app-misc/ca-certificates, …); latest impact high. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-0465
redhat medium — https://access.redhat.com/security/cve/CVE-2011-0465
suse critical — https://www.suse.com/security/cve/CVE-2011-0465/
ubuntu medium CVE-2011-0465 medium priority: Ubuntu including 1 source packages (x11-xserver-utils), 6 status rows across 6 suites (dapper, hardy, karmic, lucid, maverick, upstream): released 4, DNE 1, needs-triage 1. https://ubuntu.com/security/CVE-2011-0465

Affected software / configurations for CVE-2011-0465

Vendor Product Version Raw CPE
matthias_hopf xrdb <= 1.0.8 cpe:2.3:a:matthias_hopf:xrdb:*:*:*:*:*:*:*:*
matthias_hopf xrdb 1.0.2 cpe:2.3:a:matthias_hopf:xrdb:1.0.2:*:*:*:*:*:*:*
matthias_hopf xrdb 1.0.3 cpe:2.3:a:matthias_hopf:xrdb:1.0.3:*:*:*:*:*:*:*
matthias_hopf xrdb 1.0.4 cpe:2.3:a:matthias_hopf:xrdb:1.0.4:*:*:*:*:*:*:*
matthias_hopf xrdb 1.0.5 cpe:2.3:a:matthias_hopf:xrdb:1.0.5:*:*:*:*:*:*:*
matthias_hopf xrdb 1.0.6 cpe:2.3:a:matthias_hopf:xrdb:1.0.6:*:*:*:*:*:*:*
matthias_hopf xrdb 1.0.7 cpe:2.3:a:matthias_hopf:xrdb:1.0.7:*:*:*:*:*:*:*
x x11 <= r7.6 cpe:2.3:a:x:x11:*:*:*:*:*:*:*:*
x x11 r1 cpe:2.3:a:x:x11:r1:*:*:*:*:*:*:*
x x11 r2 cpe:2.3:a:x:x11:r2:*:*:*:*:*:*:*
x x11 r3 cpe:2.3:a:x:x11:r3:*:*:*:*:*:*:*
x x11 r4 cpe:2.3:a:x:x11:r4:*:*:*:*:*:*:*
x x11 r5 cpe:2.3:a:x:x11:r5:*:*:*:*:*:*:*
x x11 r6 cpe:2.3:a:x:x11:r6:*:*:*:*:*:*:*
x x11 r6.1 cpe:2.3:a:x:x11:r6.1:*:*:*:*:*:*:*
x x11 r6.3 cpe:2.3:a:x:x11:r6.3:*:*:*:*:*:*:*
x x11 r6.4 cpe:2.3:a:x:x11:r6.4:*:*:*:*:*:*:*
x x11 r6.5.1 cpe:2.3:a:x:x11:r6.5.1:*:*:*:*:*:*:*
x x11 r6.6 cpe:2.3:a:x:x11:r6.6:*:*:*:*:*:*:*
x x11 r6.7 cpe:2.3:a:x:x11:r6.7:*:*:*:*:*:*:*
x x11 r6.7.0 cpe:2.3:a:x:x11:r6.7.0:*:*:*:*:*:*:*
x x11 r6.8.0 cpe:2.3:a:x:x11:r6.8.0:*:*:*:*:*:*:*
x x11 r6.8.1 cpe:2.3:a:x:x11:r6.8.1:*:*:*:*:*:*:*
x x11 r6.8.2 cpe:2.3:a:x:x11:r6.8.2:*:*:*:*:*:*:*
x x11 r6.9.0 cpe:2.3:a:x:x11:r6.9.0:*:*:*:*:*:*:*
x x11 r7.0 cpe:2.3:a:x:x11:r7.0:*:*:*:*:*:*:*
x x11 r7.1 cpe:2.3:a:x:x11:r7.1:*:*:*:*:*:*:*
x x11 r7.2 cpe:2.3:a:x:x11:r7.2:*:*:*:*:*:*:*
x x11 r7.3 cpe:2.3:a:x:x11:r7.3:*:*:*:*:*:*:*
x x11 r7.4 cpe:2.3:a:x:x11:r7.4:*:*:*:*:*:*:*
x x11 r7.5 cpe:2.3:a:x:x11:r7.5:*:*:*:*:*:*:*

References for CVE-2011-0465

URL Tags
http://cgit.freedesktop.org/xorg/app/xrdb/commit/?id=1027d5df07398c1507fb1fe3a9981aa6b4bc3a56 Patch
http://lists.fedoraproject.org/pipermail/package-announce/2011-April/057928.html
http://lists.freedesktop.org/archives/xorg-announce/2011-April/001635.html Patch
http://lists.freedesktop.org/archives/xorg-announce/2011-April/001636.html Patch
http://lists.opensuse.org/opensuse-security-announce/2011-04/msg00002.html
http://secunia.com/advisories/44010
http://secunia.com/advisories/44012
http://secunia.com/advisories/44040 Vendor Advisory
http://secunia.com/advisories/44082
http://secunia.com/advisories/44122
http://secunia.com/advisories/44123
http://secunia.com/advisories/44193
http://slackware.com/security/viewer.php?l=slackware-security&y=2011&m=slackware-security.465748
http://www.debian.org/security/2011/dsa-2213
http://www.mandriva.com/security/advisories?name=MDVSA-2011:076
http://www.redhat.com/support/errata/RHSA-2011-0432.html
http://www.redhat.com/support/errata/RHSA-2011-0433.html
http://www.securityfocus.com/bid/47189
http://www.securitytracker.com/id?1025317
http://www.ubuntu.com/usn/USN-1107-1
http://www.vupen.com/english/advisories/2011/0880 Vendor Advisory
http://www.vupen.com/english/advisories/2011/0889
http://www.vupen.com/english/advisories/2011/0906
http://www.vupen.com/english/advisories/2011/0929
http://www.vupen.com/english/advisories/2011/0966
http://www.vupen.com/english/advisories/2011/0975
https://bugzilla.redhat.com/show_bug.cgi?id=680196 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/66585
https://lwn.net/Articles/437150/
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