CVE-2005-2827
CVE-2005-2827 is a high-severity vulnerability in Microsoft Windows 2000 with a CVSS 2.0 base score of 7.2. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.
Key facts
- Severity: High (CVSS 2.0 base score 7.2)
- EPSS exploit prediction: 3% (84th percentile)
- Actively exploited: Not listed in CISA KEV
- Affected product: Microsoft Windows 2000
- Published:
- Last modified:
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."
Frequently asked questions
- What is CVE-2005-2827?
- 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."
- How severe is CVE-2005-2827?
- CVE-2005-2827 has a CVSS 2.0 base score of 7.2, rated high severity.
- Is CVE-2005-2827 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (84th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2005-2827?
- CVE-2005-2827 primarily affects Microsoft Windows 2000. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2005-2827?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2005-2827 published?
- CVE-2005-2827 was published on 2005-12-14 and last updated on 2026-06-16.
References
- http://secunia.com/advisories/15821
- http://secunia.com/advisories/18064
- http://secunia.com/advisories/18311
- http://securityreason.com/securityalert/252
- http://securitytracker.com/id?1015347
- http://support.avaya.com/elmodocs2/security/ASA-2005-234.pdf
- http://www.eeye.com/html/research/advisories/AD20051213.html
- http://www.osvdb.org/18823
- http://www.securityfocus.com/archive/1/419377/100/0/threaded
- http://www.securityfocus.com/bid/15826
- http://www.vupen.com/english/advisories/2005/2868
- http://www.vupen.com/english/advisories/2005/2909
- http://www130.nortelnetworks.com/cgi-bin/eserv/cs/main.jsp?cscat=BLTNDETAIL&DocumentOID=375420
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2005/ms05-055
- https://exchange.xforce.ibmcloud.com/vulnerabilities/23447
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1583
Affected products (6)
- cpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000:*:sp1:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000:*:sp2:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000:*:sp3:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
- cpe:2.3:o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*
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