cyfenced.com →

[ CVE-2010-0806 · Published 10 Mar 2010 ]

Microsoft Internet Explorer Use-After-Free Vulnerability

Exploited · CISA KEV CVSS 8.8 EPSS 82%Fix available

[ Why it matters ]Priority signals

  • Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2026-05-20
  • EPSS: 82% chance of exploitation in the next 30 days (higher than 100% of CVEs)

[ Description ]Official description

Use-after-free vulnerability in the Peer Objects component (aka iepeers.dll) in Microsoft Internet Explorer 6, 6 SP1, and 7 allows remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object, as exploited in the wild in March 2010, aka "Uninitialized Memory Corruption Vulnerability."

CISA: Microsoft Internet Explorer contains an use-after-free vulnerability that could allow remote attackers to execute arbitrary code via vectors involving access to an invalid pointer after the deletion of an object. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 3 Jun 2026): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

[ References ]References