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Actively exploited · Published Mar 10, 2010 · Assigned by microsoft

CVE-2010-0806

High 8.8 Exploited

In plain English

A high-severity use-after-free in Internet Explorer from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on May 20, 2026). The chance it is exploited in the next 30 days is estimated at 82.1% (higher than 99.7% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Severity (CVSS 3.1)8.8High
Exploit odds (30 days)82.1%top 0.3% of all CVEs
Exploited in the wildYesCISA KEV since May 20, 2026
Attack tooling1Metasploit

CISA guidance

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Federal agencies must remediate by Jun 3, 2026.

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."

Affected products (as reported)

VendorProductVersions
n/a n/a n/a

Weakness: CWE-416 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

References