peter bassill · operator
$ cve CVE-2010-0249 JSON

CVE-2010-0249 KEV EXPLOIT

8.8
HIGH · CVSS 3.1 · EPSS 91.9% (pctl 100)

Patch first

On CISA KEV — known exploited in the wild, due 2026-06-03.

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."

Scoring

CVSS8.8 (HIGH, v3.1)
VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS91.94% — more likely to be exploited than 100% of all CVEs
WeaknessCWE-416
On CISA KEVyes — remediate by 2026-06-03
Public exploityes
Published2010-01-15
Last modified2026-06-16

CISA KEV

NameMicrosoft Internet Explorer Use-After-Free Vulnerability
Added2026-05-20
Due2026-06-03
Vendor / productMicrosoft / Internet Explorer
Ransomware usenone reported

Affected (7)

VendorProduct
microsoftinternet explorer
microsoftwindows 2000
microsoftwindows 7
microsoftwindows server 2003
microsoftwindows server 2008
microsoftwindows vista
microsoftwindows xp

Public exploits

References

→ the Explorer  ·  watch your stack  ·  NVD