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CVE-2010-0420

16
FAUCET Score

CVE-2010-0420 describes a denial-of-service vulnerability in libpurple, specifically affecting Finch and Pidgin versions prior to 2.6.6. Attackers can exploit this by sending a crafted nickname containing "<br>" sequences within an XMPP multi-user chat, leading to an application crash. The vulnerability has a CVSS score of 4.3 (Medium), indicating a network-based attack with medium complexity and a partial impact on availability. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.6.5CPE 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

4.3MEDIUM

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

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.88%
Probability of exploitation in next 30 days
EPSS Percentile
85.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0288 is in the 78th percentile among its peer group of 19,958 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 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 (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 4Fixed in: pidgin-0:2.6.6-1.el4
View patch
redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 5Fixed in: pidgin-0:2.6.6-1.el5
View patch

Vendor Advisories (1)

redhatCVE-2010-0420Low

pidgin: Finch XMPP MUC Crash

Feb 18, 2010

References

developer.pidgin.im / wiki/ChangeLog
Patch
lists.fedoraproject.org / pipermail/package-announce/2010-February/035332.html
lists.fedoraproject.org / pipermail/package-announce/2010-February/035347.html
lists.fedoraproject.org / pipermail/package-announce/2010-February/035409.html
lists.opensuse.org / opensuse-security-announce/2010-03/msg00004.html
pidgin.im / news/security
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
secunia.com / advisories/38563
Vendor Advisory
secunia.com / advisories/38640
Vendor Advisory
secunia.com / advisories/38658
Vendor Advisory
secunia.com / advisories/38712
Vendor Advisory
secunia.com / advisories/38915
secunia.com / advisories/39509
exchange.xforce.ibmcloud.com / vulnerabilities/56399
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11485
oval.cisecurity.org / repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18230
rhn.redhat.com / errata/RHSA-2010-0115.html
debian.org / security/2010/dsa-2038
mandriva.com / security/advisories
mandriva.com / security/advisories
osvdb.org / 62439
securityfocus.com / bid/38294
ubuntu.com / usn/USN-902-1
vupen.com / english/advisories/2010/0413
PatchVendor Advisory
vupen.com / english/advisories/2010/0914
vupen.com / english/advisories/2010/1020