---
title: "CVE-2003-0719: Buffer overflow in the Private… | CubePath"
description: "Buffer overflow in the Private Communications Transport (PCT) protocol implementation in the Microsoft SSL library, as used in Microsoft Windows NT 4.0…"
language: en
source: https://cubepath.com/security/cve/CVE-2003-0719
---

# CVE-2003-0719: Buffer overflow in the Private… | CubePath

## Description

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.

Official description from the CVE record, published by mitre. Copyright © 1999-2026 The MITRE Corporation. See [/security/cve/legal](https://cubepath.com/security/cve/legal) for the CVE license. [View the record on cve.org](https://www.cve.org/CVERecord?id=CVE-2003-0719)

## Key data

### EPSS

Exploit Prediction Scoring System by FIRST: an estimate of the probability that exploitation activity will be observed in the next 30 days.

Score

0.81203 (81.2% probability)

Percentile

99.6%

Scores of

Nov 10, 2026

Model

v2026.06.15

## References

Links listed in the CVE record. They lead to other sites, which CubePath does not control.

- [oval:org.mitre.oval:def:1093](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1093)  (oval.cisecurity.org) vdb-entry signature
- [20040430 A technical description of the SSL PCT vulnerability (CVE-2003-0719)](http://www.securityfocus.com/archive/1/361836)  (securityfocus.com) mailing-list
- [MS04-011](https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-011)  (docs.microsoft.com) vendor-advisory
- [VU#586540](http://www.kb.cert.org/vuls/id/586540)  (kb.cert.org) third-party-advisory
- [TA04-104A](http://www.us-cert.gov/cas/techalerts/TA04-104A.html)  (us-cert.gov) third-party-advisory
- [20040413 Microsoft SSL Library Remote Compromise Vulnerability](http://xforce.iss.net/xforce/alerts/id/168)  (xforce.iss.net) third-party-advisory
- [oval:org.mitre.oval:def:889](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A889)  (oval.cisecurity.org) vdb-entry signature
- [oval:org.mitre.oval:def:903](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A903)  (oval.cisecurity.org) vdb-entry signature
- [oval:org.mitre.oval:def:951](https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A951)  (oval.cisecurity.org) vdb-entry signature

## Timeline

1. ID reserved Sep 2, 2003
2. Record published Apr 16, 2004
3. Record last updated Aug 8, 2024

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## About CubePath

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Data from the CVE Program (MITRE), CISA KEV and FIRST EPSS. CVSS is owned by FIRST and used by permission. Not affiliated with or endorsed by MITRE, CISA or FIRST. Data as of Nov 10, 2026, 19:58 UTC. [Sources and licenses](https://cubepath.com/security/cve/legal)