HOME VULNERABILITIESCVE-2009-2694

CRITICALPOC

CVE-2009-2694

CWE-399Published: August 21, 2009· Updated: Jun 16, 2026

10.0

CVSS v3.1

Official Description

The msn_slplink_process_msg function in libpurple/protocols/msn/slplink.c in libpurple, as used in Pidgin (formerly Gaim) before 2.5.9 and Adium 1.3.5 and earlier, allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) by sending multiple crafted SLP (aka MSNSLP) messages to trigger an overwrite of an arbitrary memory location. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2009-1376.

Technical Analysis

CVE-2009-2694 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A proof-of-concept (PoC) exploit exists for CVE-2009-2694. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.

User Interaction

Scope

Impact

ConfidentialityC

IntegrityC

AvailabilityC

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

Affected Vendors & Products

adium1 product(s)

adium

pidgin1 product(s)

pidgin

Source: NVD CPE · 29 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

Security advisories & exploits

Official NIST entry

CVE Program entry

External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttp://developer.pidgin.im/viewmtn/revision/info/6f7343166c673bf0496ecb1afec9b633c1d54a0e

PATCHhttp://www.debian.org/security/2009/dsa-1870

PATCHhttp://developer.pidgin.im/viewmtn/revision/info/6f7343166c673bf0496ecb1afec9b633c1d54a0e

PATCHhttp://www.debian.org/security/2009/dsa-1870

ADVISORYhttp://secunia.com/advisories/36384

ADVISORYhttp://secunia.com/advisories/36392

ADVISORYhttp://secunia.com/advisories/36401

ADVISORYhttp://www.pidgin.im/news/security/?id=34

ADVISORYhttp://www.vupen.com/english/advisories/2009/2303

ADVISORYhttps://rhn.redhat.com/errata/RHSA-2009-1218.html

ADVISORYhttp://secunia.com/advisories/36384

ADVISORYhttp://secunia.com/advisories/36392

ADVISORYhttp://secunia.com/advisories/36401

ADVISORYhttp://www.pidgin.im/news/security/?id=34

ADVISORYhttp://www.vupen.com/english/advisories/2009/2303

ADVISORYhttps://rhn.redhat.com/errata/RHSA-2009-1218.html

All References (38)

→

http://developer.pidgin.im/viewmtn/revision/info/6f7343166c673bf0496ecb1afec9b633c1d54a0ePatch

→

http://developer.pidgin.im/wiki/ChangeLog

→

http://secunia.com/advisories/36384Vendor Advisory

→

http://secunia.com/advisories/36392Vendor Advisory

→

http://secunia.com/advisories/36401Vendor Advisory

→

http://secunia.com/advisories/36402

→

http://secunia.com/advisories/36708

→

http://secunia.com/advisories/37071

→

http://sunsolve.sun.com/search/document.do?assetkey=1-66-266908-1

→

http://www.coresecurity.com/content/libpurple-arbitrary-writeExploit

→

http://www.debian.org/security/2009/dsa-1870Patch

→

http://www.exploit-db.com/exploits/9615

→

http://www.pidgin.im/news/security/?id=34Vendor Advisory

→

http://www.vupen.com/english/advisories/2009/2303Vendor Advisory

→

http://www.vupen.com/english/advisories/2009/2663

Quick Facts

CVE IDCVE-2009-2694

CVSS Score10.0 / 10

SeverityCRITICAL

WeaknessCWE-399

CISA KEVNo

ExploitPOC

Affected2 vendor(s)

PublishedAug 21, 2009

Related CVEs (CWE-399)

Recommended Actions

→Apply vendor patches immediately
→Monitor CVE-2009-2694 in threat intel feeds
→Review IDS/IPS signatures for exploitation attempts

Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.

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