The thread termination routine in the kernel for Windows NT 4.0 and 2000 (NTOSKRNL.EXE) allows local users to modify kernel memory and execution flow via steps in which a terminating thread causes Asynchronous Procedure Call (APC) entries to free the wrong data, aka the "Windows Kernel Vulnerability."
Published Dec 14, 2005
7.2
HIGHCVSS 2.0
EPSS 2.63%
Description
The thread termination routine in the kernel for Windows NT 4.0 and 2000 (NTOSKRNL.EXE) allows local users to modify kernel memory and execution flow via steps in which a terminating thread causes Asynchronous Procedure Call (APC) entries to free the wrong data, aka the "Windows Kernel Vulnerability."
Affected products
No data.
- n/a
- n/a
- n/a
- n/a
- n/a
- 4.0
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:L/AC:L/Au:N/C:C/I:C/A:C
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.63% (0.02626) | 84.95th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.63% (0.02626) | 83.46th | v5 (v2026.06.15) |
| Oct 23, 2025 | 1.72% (0.01718) | 81.71th | v4 (v2025.03.14) |
| Oct 1, 2025 | 3.07% (0.03068) | 86.29th | v4 (v2025.03.14) |
| Mar 17, 2025 | 1.05% (0.01048) | 76.00th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.05% (0.00052) | 22.23th | v3 (v2023.03.01) |
| Jul 2, 2024 | 0.05% (0.00053) | 21.21th | v3 (v2023.03.01) |
| Apr 4, 2024 | 0.05% (0.00053) | 19.18th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.05% (0.00051) | 17.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.07% (0.00073) | 29.65th | v3 (v2023.03.01) |
| Mar 6, 2023 | 4.10% (0.04097) | 86.00th | v2 (v2022.01.01) |
| Jul 1, 2022 | 4.10% (0.04097) | 84.98th | v2 (v2022.01.01) |
| Apr 1, 2022 | 3.84% (0.03844) | 84.09th | v2 (v2022.01.01) |
| Feb 4, 2022 | 3.84% (0.03844) | 67.28th | v2 (v2022.01.01) |
No CWE recorded.
References (16)
- http://secunia.com/advisories/15821 third-party-advisoryx_refsource_SECUNIAPatchVendor Advisory
- http://secunia.com/advisories/18064 third-party-advisoryx_refsource_SECUNIA
- http://secunia.com/advisories/18311 third-party-advisoryx_refsource_SECUNIA
- http://securityreason.com/securityalert/252 third-party-advisoryx_refsource_SREASON
- http://securitytracker.com/id?1015347 vdb-entryx_refsource_SECTRACK
- http://support.avaya.com/elmodocs2/security/ASA-2005-234.pdf x_refsource_CONFIRM
- http://www.eeye.com/html/research/advisories/AD20051213.html third-party-advisoryx_refsource_EEYE
- http://www.osvdb.org/18823 vdb-entryx_refsource_OSVDB
- http://www.securityfocus.com/archive/1/419377/100/0/threaded mailing-listx_refsource_BUGTRAQ
- http://www.securityfocus.com/bid/15826 vdb-entryx_refsource_BIDPatch
- http://www.vupen.com/english/advisories/2005/2868 vdb-entryx_refsource_VUPEN
- http://www.vupen.com/english/advisories/2005/2909 vdb-entryx_refsource_VUPEN
- http://www130.nortelnetworks.com/cgi-bin/eserv/cs/main.jsp?cscat=BLTNDETAIL&DocumentOID=375420 x_refsource_MISC
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-055 vendor-advisoryx_refsource_MS
- https://exchange.xforce.ibmcloud.com/vulnerabilities/23447 vdb-entryx_refsource_XF
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1583 vdb-entrysignaturex_refsource_OVAL
Change history (0)
No recorded changes yet.