Microsoft Windows Improper Input Validation Vulnerability (CVE-2009-1123)
Severity: high · Patch status: patched · Since 2022-03-03 · CVE-2009-1123
The kernel in Microsoft Windows does not properly validate changes to unspecified kernel objects, which allows local users to gain privileges via a crafted application. CISA added CVE-2009-1123 to its Known Exploited Vulnerabilities catalog on Mar 3, 2022, which means attackers are exploiting it in the wild.
What to do
- Apply updates per vendor instructions.
- US federal agencies must remediate by Mar 24, 2022 (BOD 22-01); treat that as the outer limit.
Sources
All live incidents on Threat Watch
