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CVE-2011-2200

17
FAUCET Score

CVE-2011-2200 describes a vulnerability in the D-Bus message bus system, specifically within the _dbus_header_byteswap function, affecting versions 1.2.x, 1.4.x, and 1.5.x. This flaw allows local users to trigger a denial of service, potentially leak sensitive information, or modify system state through crafted messages due to improper handling of non-native byte order. With a CVSS score of 4.6 (AV:L/AC:L/Au:N/C:P/I:P/A:P), it indicates a low-complexity attack requiring local access with potential for partial confidentiality, integrity, and availability impacts. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
1.5.0CPE matchmatch criteria
cpe:2.3:a:freedesktop:dbus:1.5.0:*:*:*:*:*:*:*
1.5.2CPE matchmatch criteria
cpe:2.3:a:freedesktop:dbus:1.5.2:*:*:*:*:*:*:*
1.4.0CPE matchmatch criteria
cpe:2.3:a:freedesktop:dbus:1.4.0:*:*:*:*:*:*:*
1.4.1CPE matchmatch criteria
cpe:2.3:a:freedesktop:dbus:1.4.1:*:*:*:*:*:*:*
1.4.4CPE matchmatch criteria
cpe:2.3:a:freedesktop:dbus:1.4.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

4.6MEDIUM

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
LOCAL
Access Complexity
LOW
Authentication
NONE
Exploitability Score
3.9
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.39%
Probability of exploitation in next 30 days
EPSS Percentile
31.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0039 is in the 55th percentile among its peer group of 3,048 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 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 (3)

redhatpatch availablevia nvd_reference
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: dbus-0:1.1.2-16.el5_7
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: dbus-1:1.2.24-5.el6_1
View patch

Vendor Advisories (1)

redhatCVE-2011-2200Moderate

dbus: Local DoS via messages with non-native byte order

Jun 9, 2011

References

bugs.debian.org / cgi-bin/bugreport.cgi
cgit.freedesktop.org / dbus/dbus/commit
Patch
cgit.freedesktop.org / dbus/dbus/commit
Patch
cgit.freedesktop.org / dbus/dbus/tree/NEWS
Patch
cgit.freedesktop.org / dbus/dbus/tree/NEWS
kb.juniper.net / InfoCenter/index
lists.freedesktop.org / archives/dbus/2007-March/007357.html
lists.freedesktop.org / archives/dbus/2011-May/014408.html
openwall.com / lists/oss-security/2011/06/12/1
Patch
openwall.com / lists/oss-security/2011/06/12/2
openwall.com / lists/oss-security/2011/06/13/12
Patch
bugs.freedesktop.org / show_bug.cgi
bugzilla.redhat.com / show_bug.cgi
Patch
secunia.com / advisories/44896
Vendor Advisory
exchange.xforce.ibmcloud.com / vulnerabilities/67974
redhat.com / support/errata/RHSA-2011-1132.html