CVE-2010-4398: Microsoft Windows Kernel Stack-Based Buffer Overflow Vulnerability
CVE-2010-4398 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2022-03-28
A stack-based buffer overflow vulnerability exists in the RtlQueryRegistryValues function in win32k.sys. Local attackers can exploit this via a crafted REG_BINARY value for the SystemDefaultEUDCFont registry key to gain elevated privileges and bypass User Account Control (UAC).
Yes. CVE-2010-4398 is known to be exploited in the wild, first recorded on 28 March 2022. Treat it as urgent.
How severe is CVE-2010-4398?
Critical severity, with a CVSS score of 7.8, published 28 March 2022.
Which products and versions are affected?
Microsoft Windows XP SP2, SP3; Microsoft Windows Server 2003 SP2; Microsoft Windows Vista SP1, SP2; Microsoft Windows Server 2008 Gold, SP2, R2; and 1 more.
Is there a fix for CVE-2010-4398?
A patch was published on 2011-02-08: Microsoft released security bulletin MS11-011 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2010-4398 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2010-4398?
Check whether you run Microsoft Windows. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Microsoft Windows XP SP2, SP3
Microsoft Windows Server 2003 SP2
Microsoft Windows Vista SP1, SP2
Microsoft Windows Server 2008 Gold, SP2, R2
Microsoft Windows 7
Timeline
2010-11-25: disclosed: Initial reports of zero-day flaw bypassing UAC
2011-02-08: patched: Microsoft released security bulletin MS11-011
2022-03-28: kev added: Added to CISA Known Exploited Vulnerabilities Catalog