CVE Watch—

CVE-2010-0249

Microsoft Internet Explorer Use-After-Free Vulnerability

CVSS

—

No CVSS

EPSS

91.9%

p100

KEV

YES

May 20, 2026

Exploit Today

0-100

Published: — · Last modified: —

EPSS · 30d

91.9%EPSS · 30 days91.9%

2026-06-302026-07-16

KEV catalog record

Product

Microsoft / Internet Explorer

Vulnerability

Microsoft Internet Explorer Use-After-Free Vulnerability

Added to KEV

May 20, 2026

Remediate by

Jun 3, 2026

Known ransomware use

Summary description

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.

Notes

https://learn.microsoft.com/en-us/security-updates/SecurityAdvisories/2010/979352 ; https://nvd.nist.gov/vuln/detail/CVE-2010-0249

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