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 Apr 16, 2004
7.5
HIGHCVSS 2.0
EPSS 81.20%
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.
Affected products
No data.
Configuration 1
- n/a
Configuration 2
- n/a
- n/a
- r2
- n/a
- n/a
- 4.0
- n/a
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 81.20% (0.81203) | 99.63th | v5 (v2026.06.15) |
| Jul 20, 2026 | 81.20% (0.81203) | 99.60th | v5 (v2026.06.15) |
| Jun 20, 2026 | 83.41% (0.83412) | 99.64th | v5 (v2026.06.15) |
| Jun 15, 2026 | 81.20% (0.81203) | 99.59th | v5 (v2026.06.15) |
| Oct 23, 2025 | 75.26% (0.75258) | 98.82th | v4 (v2025.03.14) |
| Oct 1, 2025 | 78.36% (0.78359) | 98.99th | v4 (v2025.03.14) |
| Aug 30, 2025 | 74.44% (0.74444) | 98.80th | v4 (v2025.03.14) |
| May 29, 2025 | 70.97% (0.70967) | 98.60th | v4 (v2025.03.14) |
| Mar 17, 2025 | 75.98% (0.75976) | 98.86th | v4 (v2025.03.14) |
| Dec 12, 2024 | 95.75% (0.95755) | 99.51th | v3 (v2023.03.01) |
| May 1, 2024 | 95.75% (0.95755) | 99.41th | v3 (v2023.03.01) |
| Oct 23, 2023 | 95.57% (0.95568) | 99.18th | v3 (v2023.03.01) |
| Mar 24, 2023 | 95.02% (0.95018) | 98.83th | v3 (v2023.03.01) |
| Mar 7, 2023 | 94.35% (0.94349) | 98.66th | v3 (v2023.03.01) |
| Mar 6, 2023 | 87.31% (0.87309) | 99.75th | v2 (v2022.01.01) |
| Feb 4, 2022 | 87.31% (0.87309) | 99.70th | v2 (v2022.01.01) |
No CWE recorded.
References (9)
- http://www.kb.cert.org/vuls/id/586540 third-party-advisoryx_refsource_CERT-VNPatchThird Party AdvisoryUS Government Resource
- http://www.securityfocus.com/archive/1/361836 mailing-listx_refsource_BUGTRAQPatchVendor Advisory
- http://www.us-cert.gov/cas/techalerts/TA04-104A.html third-party-advisoryx_refsource_CERTThird Party AdvisoryUS Government Resource
- http://xforce.iss.net/xforce/alerts/id/168 third-party-advisoryx_refsource_ISSPatchVendor Advisory
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-011 vendor-advisoryx_refsource_MS
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1093 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A889 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A903 vdb-entrysignaturex_refsource_OVAL
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A951 vdb-entrysignaturex_refsource_OVAL
Change history (0)
No recorded changes yet.