CVE-2007-4635

Yahoo! Messenger 8.1.0.209 and 8.1.0.402 - Denial of Service via File-Transfer Packet

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2007-4635. PoCs published by SlicK.

AI-analyzed exploit summary The provided text describes a denial-of-service vulnerability in Yahoo! Messenger versions 8.1.0.209 and 8.1.0.402, triggered by malformed file-transfer packets. The issue is reportedly caused by a buffer overflow, though this is unconfirmed.

Description

Yahoo! Messenger 8.1.0.209 and 8.1.0.402 allows remote attackers to cause a denial of service (application crash) via certain file-transfer packets, possibly involving a buffer overflow, as demonstrated by ym8bug.exe. NOTE: this might be related to CVE-2007-4515. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

Exploits (1)

exploitdb WRITEUP VERIFIED
by SlicK · textdoswindows
https://www.exploit-db.com/exploits/30544

The provided text describes a denial-of-service vulnerability in Yahoo! Messenger versions 8.1.0.209 and 8.1.0.402, triggered by malformed file-transfer packets. The issue is reportedly caused by a buffer overflow, though this is unconfirmed.

Classification
Writeup 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Theoretical
Target: Yahoo! Messenger 8.1.0.209, 8.1.0.402
No auth needed
Prerequisites: Network access to target · Ability to send crafted file-transfer packets
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/25484

Scores

EPSS 0.0341
EPSS Percentile 87.6%

Details

CWE
CWE-119 CWE-20
Status published
Products (2)
yahoo/messenger 8.1.0.209
yahoo/messenger 8.1.0.402
Published Aug 31, 2007
Tracked Since Feb 18, 2026