CVE-2010-0420
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.
Does this matter?
Lower severity and a low EPSS score (2.86%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 2.0
- 4.3 MEDIUMAV:N/AC:M/Au:N/C:N/I:N/A:P
- EPSS
- 2.86% probability · 87th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- pidgin/pidgin
- Source
- secalert@redhat.com
EPSS 2.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://developer.pidgin.im/wiki/ChangeLogPatch
- http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035332.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035347.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035409.html
- http://lists.opensuse.org/opensuse-security-announce/2010-03/msg00004.html
- http://pidgin.im/news/security/?id=44Vendor Advisory
- http://secunia.com/advisories/38563Vendor Advisory
- http://secunia.com/advisories/38640Vendor Advisory
- http://secunia.com/advisories/38658Vendor Advisory
- http://secunia.com/advisories/38712Vendor Advisory
- http://secunia.com/advisories/38915
- http://secunia.com/advisories/39509
- http://www.debian.org/security/2010/dsa-2038
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:041
- http://www.mandriva.com/security/advisories?name=MDVSA-2010:085
- http://www.osvdb.org/62439
- http://www.securityfocus.com/bid/38294
- http://www.ubuntu.com/usn/USN-902-1
- http://www.vupen.com/english/advisories/2010/0413Patch, Vendor Advisory
- http://www.vupen.com/english/advisories/2010/0914
- http://www.vupen.com/english/advisories/2010/1020
- https://bugzilla.redhat.com/show_bug.cgi?id=565786
- https://exchange.xforce.ibmcloud.com/vulnerabilities/56399
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11485
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18230
- https://rhn.redhat.com/errata/RHSA-2010-0115.html
- http://developer.pidgin.im/wiki/ChangeLogPatch
- http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035332.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035347.html
- http://lists.fedoraproject.org/pipermail/package-announce/2010-February/035409.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.