CVE-2010-0249

HIGH

8.8

CVSS Score

Published: January 15, 2010 at 05:00 PM UTC

Updated: June 16, 2026 at 11:15 PM UTC

7 products affected across 1 vendorInternet ExplorerWindows Server 2008Windows 7

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Severity

HIGH8.8

Exploitation

CISA KEV

Exploit prediction

EPSS 92%

SSVC

Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score91.9%

EPSS (Exploit Prediction Scoring System) estimates a 91.9% chance this CVE is exploited in the wild within the next 30 days — higher than 100% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code by accessing a pointer associated with a deleted object. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

Required Action

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Ransomware Use

Unknown

Added to KEV

May 20, 2026

Remediation Due

Jun 3, 2026

146 days overdue

Notes

https://learn.microsoft.com/en-us/security-updates/SecurityAdvisories/2010/979352

https://nvd.nist.gov/vuln/detail/CVE-2010-0249

Description

Use-after-free vulnerability in Microsoft Internet Explorer 6, 6 SP1, 7, and 8 on Windows 2000 SP4; Windows XP SP2 and SP3; Windows Server 2003 SP2; Windows Vista Gold, SP1, and SP2; Windows Server 2008 Gold, SP2, and R2; and Windows 7 allows remote attackers to execute arbitrary code by accessing a pointer associated with a deleted object, related to incorrectly initialized memory and improper handling of objects in memory, as exploited in the wild in December 2009 and January 2010 during Operation Aurora, aka "HTML Object Memory Corruption Vulnerability."

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Internet Explorer · Microsoft

95%

5.0.1 sp4 6 6 sp1 7.0 8

microsoft-windows-2000 (environment) · microsoft-windows-7 (environment) · microsoft-windows-server-2003 (environment) · microsoft-windows-server-2008 (environment) · microsoft-windows-vista (environment) · microsoft-windows-xp (environment)

Windows 2000 · Microsoftdevice

80%

All versions

Windows 7 · Microsoftdevice

80%

All versions

Windows Server 2003 · Microsoftdevice

80%

All versions

Windows Server 2008 · Microsoftdevice

80%

All versions