CVE-2010-0249
Microsoft Internet Explorer Use-After-Free Vulnerability
CVSS
—
No CVSS
EPSS
91.9%
p100
KEV
YES
May 20, 2026
Exploit Today
80
0-100
Published: — · Last modified: —
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
No
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