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Fencer Vulns
high 7.5

CVE-2003-0717 in the critical feed json

The Messenger Service for Windows NT through Server 2003 does not properly verify the length of the message, which allows remote attackers…

published 2003-10-17 23 y ago modified 2026-06-16 4 mo ago also EUVD-2003-0708

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
61.0%
EPSS 61.0% chance of exploitation in 30 days, percentile 99.1%
public exploits
4
Exploit-DB

Summary

The Messenger Service for Windows NT through Server 2003 does not properly verify the length of the message, which allows remote attackers to execute arbitrary code via a buffer overflow attack.

Patch / fix

Timeline

  1. Published
  2. First public exploit (EDB-111)

Exploit prediction

60.99% chance of exploitation in the next 30 days, higher than 99.1% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-23247 Microsoft Windows XP/2000 - Messenger Service Buffer Overrun (MS03-043) remote, 2003-10-25
  • EDB-385 Microsoft Messenger (Linux) - Denial of Service (MS03-043) dos, 2004-08-08
  • EDB-135 Microsoft Windows Messenger Service (French) - Remote (MS03-043) remote, 2003-12-16
  • EDB-111 Microsoft Windows Messenger Service - Denial of Service (MS03-043) dos, 2003-10-18
  • securityfocus.com http://www.securityfocus.com/bid/8826 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.