What is CVE-2003-0719?

CVE-2003-0719 is a vulnerability in Microsoft Netmeeting. Published 2004-06-01.

Is CVE-2003-0719 known to be exploited?

5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Vulnerability in Microsoft Netmeeting

CVE-2003-0719

Buffer overflow in the Private Communications Transport (PCT) protocol implementation in the Microsoft SSL library, as used in Microsoft Windows NT 4.0 SP6a, 2000 SP2 through SP4, XP SP1, Server 2003, NetMeeting, Windows 98, and Windows ME, allows remote attackers to execute arbitrary code via PCT 1.0 handshake packets.

Published 2004-06-01 · last modified 2026-06-16.

CVSS v2 metric

CVSS v2 base score 7.5 (High). Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P. This CVE predates CVSS v3 and has no v3 score from NVD.

EPSS exploit prediction

EPSS: 0.812 (99.6th percentile), scored 2026-10-18.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.812 · newest: 0.812 · change: 0.000

Affected products

Microsoft Netmeeting
Microsoft Windows 2000
Microsoft Windows 2003 Server — versions r2
Microsoft Windows 98
Microsoft Windows Me
Microsoft Windows Nt — versions 4.0
Microsoft Windows Xp

Public proof-of-concept exploits

References

oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:1093 (signature, vdb-entry)
www.securityfocus.com/archive/1/361836 (Vendor Advisory, mailing-list, Patch)
docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-011 (vendor-advisory)
www.kb.cert.org/vuls/id/586540 (US Government Resource, Patch, Third Party Advisory, third-party-advisory)
www.us-cert.gov/cas/techalerts/TA04-104A.html (US Government Resource, Third Party Advisory, third-party-advisory)
xforce.iss.net/xforce/alerts/id/168 (Patch, Vendor Advisory, third-party-advisory)
oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:889 (signature, vdb-entry)
oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:903 (signature, vdb-entry)
oval.cisecurity.org/repository/search/definition/oval:org.mitre.oval:def:951 (signature, vdb-entry)

Frequently asked questions

What is CVE-2003-0719?: CVE-2003-0719 is a vulnerability in Microsoft Netmeeting. Published 2004-06-01.
Is CVE-2003-0719 known to be exploited?: 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.