CVE-2011-2200

The _dbus_header_byteswap function in dbus-marshal-header.c in D-Bus (aka DBus) 1.2.x before 1.2.28, 1.4.x before 1.4.12, and 1.5.x before 1.5.4 does not properly handle a non-native byte order, which allows local users to cause a denial of service (connection loss), obtain potentially sensitive information, or conduct unspecified state-modification attacks via crafted messages.

Published: 2011-06-22 Last update: 2026-04-29 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2011-2200 is rated Low Risk (27/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.10%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2011-2200

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 2025-03-17 0.04% 0.10% +0.05%
2 2023-03-07 1.55% 0.04% -1.50%
3 2022-02-04 — 1.55% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2011-2200

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.6 2.0 MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 3.9 6.4 [email protected]

Weakness enumeration for CVE-2011-2200

OS Trackers for CVE-2011-2200

vendor priority summary link
debian low CVE-2011-2200 low priority: Debian including 1 source packages (dbus), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2011-2200
gentoo normal CVE-2011-2200: 1 GLSA(s) (201110-14), 1 atom(s) (sys-apps/dbus); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2011-2200
redhat medium — https://access.redhat.com/security/cve/CVE-2011-2200
ubuntu medium CVE-2011-2200 medium priority: Ubuntu including 1 source packages (dbus), 5 status rows across 5 suites (hardy, lucid, maverick, natty, upstream): released 5. https://ubuntu.com/security/CVE-2011-2200

Affected software / configurations for CVE-2011-2200

Vendor Product Version Raw CPE
freedesktop dbus 1.5.0 cpe:2.3:a:freedesktop:dbus:1.5.0:*:*:*:*:*:*:*
freedesktop dbus 1.5.2 cpe:2.3:a:freedesktop:dbus:1.5.2:*:*:*:*:*:*:*
freedesktop dbus 1.4.0 cpe:2.3:a:freedesktop:dbus:1.4.0:*:*:*:*:*:*:*
freedesktop dbus 1.4.1 cpe:2.3:a:freedesktop:dbus:1.4.1:*:*:*:*:*:*:*
freedesktop dbus 1.4.4 cpe:2.3:a:freedesktop:dbus:1.4.4:*:*:*:*:*:*:*
freedesktop dbus 1.4.6 cpe:2.3:a:freedesktop:dbus:1.4.6:*:*:*:*:*:*:*
freedesktop dbus 1.4.8 cpe:2.3:a:freedesktop:dbus:1.4.8:*:*:*:*:*:*:*
freedesktop dbus 1.4.10 cpe:2.3:a:freedesktop:dbus:1.4.10:*:*:*:*:*:*:*
d-bus_project d-bus 1.2.4.2 cpe:2.3:a:d-bus_project:d-bus:1.2.4.2:*:*:*:*:*:*:permissive
d-bus_project d-bus 1.2.4.4 cpe:2.3:a:d-bus_project:d-bus:1.2.4.4:*:*:*:*:*:*:permissive
d-bus_project d-bus 1.2.4.6 cpe:2.3:a:d-bus_project:d-bus:1.2.4.6:*:*:*:*:*:*:permissive
freedesktop dbus 1.2.1 cpe:2.3:a:freedesktop:dbus:1.2.1:*:*:*:*:*:*:*
freedesktop dbus 1.2.2 cpe:2.3:a:freedesktop:dbus:1.2.2:*:*:*:*:*:*:*
freedesktop dbus 1.2.3 cpe:2.3:a:freedesktop:dbus:1.2.3:*:*:*:*:*:*:*
freedesktop dbus 1.2.4 cpe:2.3:a:freedesktop:dbus:1.2.4:*:*:*:*:*:*:*
freedesktop dbus 1.2.6 cpe:2.3:a:freedesktop:dbus:1.2.6:*:*:*:*:*:*:*
freedesktop dbus 1.2.8 cpe:2.3:a:freedesktop:dbus:1.2.8:*:*:*:*:*:*:*
freedesktop dbus 1.2.10 cpe:2.3:a:freedesktop:dbus:1.2.10:*:*:*:*:*:*:*
freedesktop dbus 1.2.12 cpe:2.3:a:freedesktop:dbus:1.2.12:*:*:*:*:*:*:*
freedesktop dbus 1.2.14 cpe:2.3:a:freedesktop:dbus:1.2.14:*:*:*:*:*:*:*
freedesktop dbus 1.2.16 cpe:2.3:a:freedesktop:dbus:1.2.16:*:*:*:*:*:*:*
freedesktop dbus 1.2.18 cpe:2.3:a:freedesktop:dbus:1.2.18:*:*:*:*:*:*:*
freedesktop dbus 1.2.20 cpe:2.3:a:freedesktop:dbus:1.2.20:*:*:*:*:*:*:*
freedesktop dbus 1.2.22 cpe:2.3:a:freedesktop:dbus:1.2.22:*:*:*:*:*:*:*
freedesktop dbus 1.2.24 cpe:2.3:a:freedesktop:dbus:1.2.24:*:*:*:*:*:*:*
freedesktop dbus 1.2.26 cpe:2.3:a:freedesktop:dbus:1.2.26:*:*:*:*:*:*:*

References for CVE-2011-2200

URL Tags
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=629938
http://cgit.freedesktop.org/dbus/dbus/commit/?h=dbus-1.2&id=6519a1f77c61d753d4c97efd6e15630eb275336e Patch
http://cgit.freedesktop.org/dbus/dbus/commit/?h=dbus-1.4&id=c3223ba6c401ba81df1305851312a47c485e6cd7 Patch
http://cgit.freedesktop.org/dbus/dbus/tree/NEWS?h=dbus-1.2 Patch
http://cgit.freedesktop.org/dbus/dbus/tree/NEWS?h=dbus-1.4
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10705
http://lists.freedesktop.org/archives/dbus/2007-March/007357.html
http://lists.freedesktop.org/archives/dbus/2011-May/014408.html
http://openwall.com/lists/oss-security/2011/06/12/1 Patch
http://openwall.com/lists/oss-security/2011/06/12/2
http://openwall.com/lists/oss-security/2011/06/13/12 Patch
http://secunia.com/advisories/44896 Vendor Advisory
http://www.redhat.com/support/errata/RHSA-2011-1132.html
https://bugs.freedesktop.org/show_bug.cgi?id=38120
https://bugzilla.redhat.com/show_bug.cgi?id=712676 Patch
https://exchange.xforce.ibmcloud.com/vulnerabilities/67974
cvelogic Threat Intelligence