CVE-2009-0082

CVE-2009-0082 is a high-severity vulnerability in Microsoft Windows 2000 with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.

Key facts

• Severity: High (CVSS 3.x base score 7.8)
• CVSS v2: 7.2
• EPSS exploit prediction: 1% (68th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-20
• Affected product: Microsoft Windows 2000
• Published: 2009-03-10
• Last modified: 2026-06-16

Description

The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 does not properly validate handles, which allows local users to gain privileges via a crafted application that triggers unspecified "actions," aka "Windows Kernel Handle Validation Vulnerability."

Frequently asked questions

What is CVE-2009-0082?

The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 does not properly validate handles, which allows local users to gain privileges via a crafted application that triggers unspecified "actions," aka "Windows Kernel Handle Validation Vulnerability."

How severe is CVE-2009-0082?

CVE-2009-0082 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2009-0082 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2009-0082?

CVE-2009-0082 primarily affects Microsoft Windows 2000. In total, 15 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2009-0082?

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-2009-0082 published?

CVE-2009-0082 was published on 2009-03-10 and last updated on 2026-06-16.

References

• http://osvdb.org/52523
• http://secunia.com/advisories/34117
• http://support.avaya.com/elmodocs2/security/ASA-2009-079.htm
• http://support.nortel.com/go/main.jsp?cscat=BLTNDETAIL&DocumentOID=842987&poid=
• http://www.securityfocus.com/bid/34027
• http://www.securitytracker.com/id?1021827
• http://www.us-cert.gov/cas/techalerts/TA09-069A.html
• http://www.vupen.com/english/advisories/2009/0659
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-006
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6036

Affected products (15)

• cpe:2.3:o:microsoft:windows_2000:*:sp4:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2003:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2003:*:sp1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2003:*:sp1:itanium:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2003:*:sp2:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:*:*:itanium:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_server_2008:*:*:x64:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_vista:*:*:x64:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_vista:*:sp1:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_vista:gold:*:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_xp:*:*:x64:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_xp:*:sp2:*:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_xp:*:sp2:x64:*:*:*:*:*
• cpe:2.3:o:microsoft:windows_xp:*:sp3:*:*:*:*:*:*

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