CVE-2009-1123

highpriority · act · 90OT risk · criticalKEV · exploitedEPSS 0.049 · 92 %ileEURUUS

grimoire priorityP0 · Act now

Exploitable?

Yes · in the wild

CISA KEV

Likely / severe?

4.88% (92nd) EPSS

CVSS 7.2 · high

Is it mine?

14 products

Check your exposure

Who says so?

3 sources

enisa_euvd · fstec_bdu · nvd

added 2022-03-03remediate by 2022-03-24

required action Apply updates per vendor instructions.

EPSS · scored 2026-10-27

Microsoft Windows Improper Input Validation Vulnerability

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

cvss

Technical severity, 0–10. One row per scoring source.

8.2

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.18.2highAV:L/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:Hsecondaryexploitability 1.8 · impact 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:Hsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: active · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20US

affected products (14)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
Microsoft Corp Windows 2000 Professional Service Pack 4all versionsfstec_bduRU
Microsoft Corp Windows Server 2003 Service Pack 2all versionsfstec_bduRU
Microsoft Corp Windows Server 2008 Service Pack 2all versionsfstec_bduRU
Microsoft Corp Windows Vista Service Pack 1all versionsfstec_bduRU
Microsoft Corp Windows Vista Service Pack 2all versionsfstec_bduRU
Microsoft Corp Windows XP Professional Edition Service Pack 2all versionsfstec_bduRU
Microsoft Corp Windows XP Service Pack 2all versionsfstec_bduRU
Microsoft Corp Windows XP Service Pack 3all versionsfstec_bduRU
microsoft windows 2000all versionsnvdUScpe:2.3:o:microsoft:windows_2000:*:*:*:*:*:*:*:*
microsoft windows server 2003all versionsnvdUScpe:2.3:o:microsoft:windows_server_2003:*:*:*:*:*:*:*:*
microsoft windows server 2008all versionsnvdUScpe:2.3:o:microsoft:windows_server_2008:*:*:*:*:*:*:*:*
microsoft windows vistaall versionsnvdUScpe:2.3:o:microsoft:windows_vista:*:*:*:*:*:*:*:*
microsoft windows xpall versionsnvdUScpe:2.3:o:microsoft:windows_xp:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2009-06-10modified 2026-06-16

references (15)

External citations — patches, advisories, analysis.

scry

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