CVE-2010-4398
Microsoft Windows Kernel Stack-Based Buffer Overflow Vulnerability
- High 7.8
- Exploited: added to CISA KEV 28 Mar 2022
- A public exploit reference is listed
Description
Stack-based buffer overflow in the RtlQueryRegistryValues function in win32k.sys in Microsoft Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista SP1 and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7 allows local users to gain privileges, and bypass the User Account Control (UAC) feature, via a crafted REG_BINARY value for a SystemDefaultEUDCFont registry key, aka "Driver Improper Interaction with Windows Kernel Vulnerability."
Key facts
- Published
- 3 Dec 2010
- Last changed
- 22 Oct 2025
- Assigned by
- mitre
- KEV added
- 28 Mar 2022
- KEV fix due
- 21 Apr 2022
- EPSS
- 8.661% likely to be exploited in the next 30 days, higher than 95.202% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.8CVSS 3.1, Highfrom CISA (ADP container)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
What to do
- Apply updates per vendor instructions.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 3 Dec 2010 Published
- 28 Mar 2022 CVE-2010-4398 added to CISA KEV
- 28 Mar 2022 Added to the CISA KEV catalogue