CVE-2010-4528
directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9...
directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9 allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a short p2pv2 packet in a DirectConnect (aka direct connection) session.
Exploit likelihood
What each source reports
NVD Score used
directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9 allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a short p2pv2 packet in a DirectConnect (aka direct connection) session.
- Record
CVE-2010-4528- CVSS 2.0
- 4.0 Medium
AV:N/AC:L/Au:S/C:N/I:N/A:P - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE List No score
directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9 allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a short p2pv2 packet in a DirectConnect (aka direct connection) session.
- Record
CVE-2010-4528- Updated
- 2026-11-02
EUVDEUVD-2010-4496 No score
directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9 allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a short p2pv2 packet in a DirectConnect (aka direct connection) session.
- Record
EUVD-2010-4496- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-jmfm-mjhr-jhgw No score
directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9...
directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9 allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a short p2pv2 packet in a DirectConnect (aka direct connection) session.
- Record
GHSA-jmfm-mjhr-jhgw- Weakness
- CWE-20
- Updated
- 2026-11-02
OSV No score
directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9 allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a short p2pv2 packet in a DirectConnect (aka direct connection) session.
- Record
CVE-2010-4528- Updated
- 2026-11-02
OSVDEBIAN-CVE-2010-4528 No score
directconn.c in the MSN protocol plugin in libpurple 2.7.6 through 2.7.8 in Pidgin before 2.7.9 allows remote authenticated users to cause a denial of service (NULL pointer dereference and application crash) via a short p2pv2 packet in a DirectConnect (aka direct connection) session.
- Record
DEBIAN-CVE-2010-4528- Updated
- 2026-11-02
Affected products
Affected packages
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2010-4528 is a medium vulnerability (CVSS 4.0) in Pidgin Libpurple, published January 7, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.55%, the 85th percentile. Fixed in pidgin 2.7.9-1.
References
bugzilla.redhat.com/show_bug.cgi?id=665421
lists.opensuse.org/opensuse-security-announce/2011-01/msg00003.html
openwall.com/lists/oss-security/2010/12/27/1
developer.pidgin.im/viewmtn/revision/diff/e76f4ad4ef2f10588195a0eedc7a08f82062f79c/with/aaa07bde3c51d3684391ae6ed86b6dbaeab5d031/libpurple/protocols/msn/directconn.c
pidgin.im/news/security?id=49
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mandriva.com/security/advisories?name=MDVSA-2010:259
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A18461
securityfocus.com/bid/45581
secunia.com/advisories/42877
vupen.com/english/advisories/2011/0028
pidgin.im/pipermail/support/2010-December/009251.html
lists.fedoraproject.org/pipermail/package-announce/2011-January/052862.html
nvd.nist.gov/vuln/detail/CVE-2010-4528
github.com/advisories/GHSA-jmfm-mjhr-jhgw
security-tracker.debian.org/tracker/CVE-2010-4528