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Fencer Intel
critical 9.3

CVE-2011-0465 json

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…

published 2011-04-08 15 y ago modified 2026-06-16 4 mo ago also EUVD-2011-0485

cvss
9.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.8%
EPSS 5.8% chance of exploitation in 30 days, percentile 93%
public exploits
0
none known

Summary

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.

Patch / fix

  • x11-xserver-utils Debian 14, Debian 13, Debian 12 7.6+2

debian advisories DEBIAN-CVE-2011-0465

  • xorg-x11-server-utils RHEL 5 7.1-5.el5_6.1
  • xorg-x11-server-utils RHEL 6 7.4-15.el6_0.1
  • xorg-x11 RHEL 4 6.8.2-1.EL.67
  • xorg-x11-sdk RHEL 4 6.8.2-1.EL.67
  • xorg-x11-twm RHEL 4 6.8.2-1.EL.67
  • xorg-x11-xdm RHEL 4 6.8.2-1.EL.67
  • xorg-x11-xfs RHEL 4 6.8.2-1.EL.67
  • xorg-x11-libs RHEL 4 6.8.2-1.EL.67

red hat advisories RHSA-2011:0433RHSA-2011:0432

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2011-0465 updated cvss 6.8

xorg: xrdb code execution via crafted X client hostname

  • Red Hat Enterprise Linux (v. 5.6.z server) xorg-x11-server-utils 7.1-5.el5_6.1
    fixed: vendor fix RHSA-2011:0433
  • Red Hat Enterprise Linux AS version 4 xorg-x11 6.8.2-1.EL.67, xorg-x11-sdk 6.8.2-1.EL.67, xorg-x11-twm 6.8.2-1.EL.67, xorg-x11-xdm 6.8.2-1.EL.67, xorg-x11-xfs 6.8.2-1.EL.67, xorg-x11-libs 6.8.2-1.EL.67, +9 more
    fixed: vendor fix RHSA-2011:0432
  • Red Hat Enterprise Linux Desktop (v. 6) xorg-x11-server-utils 7.4-15.el6_0.1
    fixed: vendor fix RHSA-2011:0433
  • Red Hat Enterprise Linux Desktop version 4 xorg-x11 6.8.2-1.EL.67, xorg-x11-sdk 6.8.2-1.EL.67, xorg-x11-twm 6.8.2-1.EL.67, xorg-x11-xdm 6.8.2-1.EL.67, xorg-x11-xfs 6.8.2-1.EL.67, xorg-x11-libs 6.8.2-1.EL.67, +9 more Red Hat Enterprise Linux ES version 4 xorg-x11 6.8.2-1.EL.67, xorg-x11-sdk 6.8.2-1.EL.67, xorg-x11-twm 6.8.2-1.EL.67, xorg-x11-xdm 6.8.2-1.EL.67, xorg-x11-xfs 6.8.2-1.EL.67, xorg-x11-libs 6.8.2-1.EL.67, +9 more
    fixed: vendor fix RHSA-2011:0432
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) xorg-x11-server-utils 7.4-15.el6_0.1 Red Hat Enterprise Linux Server (v. 6) xorg-x11-server-utils 7.4-15.el6_0.1 Red Hat Enterprise Linux Workstation (v. 6) xorg-x11-server-utils 7.4-15.el6_0.1
    fixed: vendor fix RHSA-2011:0433
  • Red Hat Enterprise Linux WS version 4 xorg-x11 6.8.2-1.EL.67, xorg-x11-sdk 6.8.2-1.EL.67, xorg-x11-twm 6.8.2-1.EL.67, xorg-x11-xdm 6.8.2-1.EL.67, xorg-x11-xfs 6.8.2-1.EL.67, xorg-x11-libs 6.8.2-1.EL.67, +9 more
    fixed: vendor fix RHSA-2011:0432

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

5.78% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Classification

Weakness
  • CWE-20 Improper Input Validation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.