CVE-2010-0420: n/a vulnerability

CVE-2010-0420: libpurple in Finch in Pidgin before 2.6.6, when an XMPP multi-user chat (MUC) room is used, does not proper...

libpurple in Finch in Pidgin before 2.6.6, when an XMPP multi-user chat (MUC) room is used, does not properly parse nicknames containing <br> sequences, which allows remote attackers to cause a denial of service (application crash) via a crafted nickname.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 00:45 UTC (UTC+00:00)

Security readout for executives and security teams

This is an older Pidgin/Finch denial-of-service issue. A malicious XMPP group-chat nickname could crash the affected client, disrupting the user’s messaging session. The sources do not indicate data theft, code execution, or confirmed active exploitation. Exposure is mainly endpoints or servers running Finch/Pidgin/libpurple before 2.6.6 with XMPP multi-user chat enabled. Systems not using XMPP MUC, not using Finch/Pidgin, or already running vendor-patched packages are unlikely to be affected. Treat as a targeted availability issue, not an enterprise-critical compromise. Patch during normal endpoint maintenance unless affected users rely on XMPP group chat for business operations. Mitigation focus: Upgrade Pidgin, Finch, or libpurple to 2.6.6 or a vendor-patched package.; Apply relevant distribution advisories for Red Hat, Fedora, Ubuntu, Debian, Mandriva, or SUSE packages.; Prioritize users joining external or untrusted XMPP multi-user chat rooms..

Prepared: Jun 28, 2026, 03:36 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Feb 24, 2010, 18:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
https://bugzilla.redhat.com/show_bug.cgi?id=565786CVE reference · x_refsource_CONFIRM
RHSA-2010:0115CVE reference · vendor-advisory, x_refsource_REDHAT
oval:org.mitre.oval:def:18230CVE reference · vdb-entry, signature
pidgin-xmpp-nickname-dos(56399)CVE reference · vdb-entry, x_refsource_XF
oval:org.mitre.oval:def:11485CVE reference · vdb-entry, signature

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

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