How severe is CVE-2010-4398?

CVE-2010-4398 has a CVSS 3.1 base score of 7.8 (HIGH). EPSS estimates a 8.7% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2010-4398: Microsoft Windows Kernel Stack-Based Buffer Overflow

CISA Known Exploited Vulnerabilities

Microsoft Windows Kernel Stack-Based Buffer Overflow Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-03-28

Remediation due

2022-04-21

Required action
Apply updates per vendor instructions.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2010-4398

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."

Severity

CVSS 3.1 · CISA7.8 HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Exploitation Context

as of October 14, 2026

All KEV statistics→

CISA added CVE-2010-4398 to the KEV catalog 4,133 days after its CVE record was published.
It is one of 391 Microsoft entries in the CISA KEV catalog, and one of 166 added in 2022.
Its current EPSS score (8.7%) is higher than that of 24% of CISA KEV entries.

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

13 Links

Vendor advisories

MS11-011

Exploits & PoCs

15609

Third-party advisories

Vulnerability databases

Other references

Record Details

Published

2010-12-03

Last updated

2025-10-22

Assigner (CNA)

mitre

Credited to

More from Microsoft

All Microsoft CVEs→

CVE-2025-592879.8 CRITICAL

Windows Server Update Service (WSUS) Remote Code Execution Vulnerability

MicrosoftKEVEPSS 100.0%2025-10-14

CVE-2021-345278.8 HIGH

Windows Print Spooler Remote Code Execution Vulnerability

MicrosoftKEVEPSS 99.8%2021-07-02

CVE-2024-214128.1 HIGH

Internet Shortcut Files Security Feature Bypass Vulnerability

MicrosoftKEVEPSS 99.4%2024-02-13

CVE-2022-301907.8 HIGH

Microsoft Windows Support Diagnostic Tool (MSDT) Remote Code Execution Vulnerability

MicrosoftKEVEPSS 99.2%2022-06-01

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.