Description
Microsoft MSN Messenger Service 1.0 through 4.6 allows remote attackers to cause a denial of service (crash) via an invite request that contains hex-encoded spaces (%20) in the Invitation-Cookie field.
Exploits (1)
exploitdb
WORKING POC
VERIFIED
by Beck Mr.R · textdoswindows
https://www.exploit-db.com/exploits/21481
References (3)
Core 3
Core References
Third Party Advisory vdb-entry
x_refsource_xf
http://www.iss.net/security_center/static/9161.php
Exploit vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/4827
Third Party Advisory, VDB Entry mailing-list
x_refsource_bugtraq
http://online.securityfocus.com/archive/1/274086
Scores
EPSS
0.1037
EPSS Percentile
93.3%
Details
Status
published
Products (8)
microsoft/msn_messenger
1.0
microsoft/msn_messenger
2.0
microsoft/msn_messenger
2.2
microsoft/msn_messenger
3.0
microsoft/msn_messenger
3.6
microsoft/msn_messenger
4.0
microsoft/msn_messenger
4.5
microsoft/msn_messenger
4.6
Published
Dec 31, 2002
Tracked Since
Feb 18, 2026