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Actively exploited · Published Jun 10, 2009 · Assigned by microsoft

CVE-2009-1123

High 7.8 Exploited

In plain English

A high-severity security flaw in Windows from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on March 3, 2022). The chance it is exploited in the next 30 days is estimated at 4.9% (higher than 92% of all known vulnerabilities). Apply updates per vendor instructions.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)4.9%top 7.9% of all CVEs
Exploited in the wildYesCISA KEV since Mar 3, 2022
Attack toolingNoneno public tooling known

CISA guidance

Apply updates per vendor instructions.

Federal agencies must remediate by Mar 24, 2022.

Official description

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."

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

References