Skip to content
Fencer Vulns
high 7.5

CVE-2003-0349 in the critical feed json

Buffer overflow in the streaming media component for logging multicast requests in the ISAPI for the logging capability of Microsoft Window…

published 2003-06-28 23 y ago modified 2026-06-16 4 mo ago also EUVD-2003-0344

cvss
7.5
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
80.3%
EPSS 80.3% chance of exploitation in 30 days, percentile 99.6%
public exploits
4
Metasploit, Exploit-DB

Summary

Buffer overflow in the streaming media component for logging multicast requests in the ISAPI for the logging capability of Microsoft Windows Media Services (nsiislog.dll), as installed in IIS 5.0, allows remote attackers to execute arbitrary code via a large POST request to nsiislog.dll.

Patch / fix

Timeline

  1. First public exploit (Metasploit exploit/windows/isapi/ms03_022_nsiislog_post)
  2. Published

Exploit prediction

80.27% chance of exploitation in the next 30 days, higher than 99.6% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/windows/isapi/ms03_022_nsiislog_post MS03-022 Microsoft IIS ISAPI nsiislog.dll ISAPI POST Overflow metasploit exploit, good rank, 2003-06-25
  • EDB-22837 Microsoft Windows NT 4.0/2000 - Media Services 'nsiislog.dll' Remote Buffer Overflow remote, 2003-06-25
  • EDB-16355 Microsoft IIS - ISAPI 'nsiislog.dll' ISAPI POST Overflow (MS03-022) (Metasploit) remote, 2010-07-25
  • EDB-48 Microsoft Windows Media Services - Remote (MS03-022) remote, 2003-07-01
  • ntbugtraq.com http://www.ntbugtraq.com/default.asp?pid=36&sid=1&A2=ind0306&L=NTBUGTRAQ&P=R4563 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.