CSIRTS // UNIFIED SECURITY ADVISORY FEEDSYS ● ONLINE · POWERED BY INTELFUSIONS.COM

← Back to feed

CVE-2010-0806: Microsoft Internet Explorer Use-After-Free Vulnerability

criticalknown exploitedpublic exploitCVE-2010-0806
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
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.

CSIRTS triage

vendor: Microsoftproduct: Internet ExplorerRemote code execution
What
Microsoft Internet Explorer contains a use-after-free vulnerability that could allow remote attackers to execute arbitrary code.
Who is affected
Users of Internet Explorer are affected, especially those on end-of-life or end-of-service versions.
Urgency
Immediate remediation is necessary due to the critical severity and confirmed exploitation.
Action
Users should discontinue use of Internet Explorer and migrate to a supported browser.

AI-assisted analysis generated from the source advisory — verify against the original.

⚡ Watch Internet Explorer

Get an email when a new Internet Explorer advisory drops — max one per day, one-click unsubscribe.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2026-05-20
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2010-0806

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2010-0806coverage & exploitation statusNVD · CVE.org

Recent advisories for Microsoft Internet Explorer

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CISA Known Exploited Vulnerabilities