Is CVE-2003-0349 in the CISA KEV catalog?

No. CVE-2003-0349 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2003-0349?

CVE-2003-0349 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2003-0349?

CVE-2003-0349 has an EPSS score of 82.54% (100th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2003-0349

HIGHEPSS 100th pctl

7.5

CVSS v2

NVD

Description

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.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

82.54%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.