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CVE-2011-4602

18
FAUCET Score

CVE-2011-4602 describes a denial-of-service vulnerability in the XMPP protocol plugin of libpurple in Pidgin versions prior to 2.10.1. This flaw allows remote attackers to crash the application by sending crafted voice or video chat messages with missing fields. The vulnerability has a CVSS score of 5.0, indicating a medium severity, with low attack complexity and no authentication required, leading to a potential application crash (availability impact). There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.10.0CPE matchmatch criteria
cpe:2.3:a:pidgin:pidgin:*:*:*:*:*:*:*:*
2.0.0CPE matchmatch criteria
cpe:2.3:a:pidgin:pidgin:2.0.0:*:*:*:*:*:*:*
2.0.1CPE matchmatch criteria
cpe:2.3:a:pidgin:pidgin:2.0.1:*:*:*:*:*:*:*
2.0.2CPE matchmatch criteria
cpe:2.3:a:pidgin:pidgin:2.0.2:*:*:*:*:*:*:*
2.1.0CPE matchmatch criteria
cpe:2.3:a:pidgin:pidgin:2.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
3.72%
Probability of exploitation in next 30 days
EPSS Percentile
88.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0372 is in the 85th percentile among its peer group of 23,701 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 redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: pidgin-0:2.6.6-10.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: pidgin-0:2.6.6-5.el5_7.4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: pidgin-0:2.7.9-3.el6.2
View patch

Vendor Advisories (1)

redhatCVE-2011-4602Low

pidgin: Multiple NULL pointer deference flaws by processing certain Jingle stanzas in the XMPP protocol plug-in

Dec 10, 2011

References

developer.pidgin.im / viewmtn/revision/info/fb216fc88b085afc06d9a15209519cde1f4df6c6
pidgin.im / news/security
secunia.com / advisories/47219
secunia.com / advisories/47234
hermes.opensuse.org / messages/13195955
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18420
redhat.com / support/errata/RHSA-2011-1820.html
redhat.com / support/errata/RHSA-2011-1821.html