Use After Free in Microsoft Internet Explorer
CVE-2010-0806
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."
EPSS: 0.822 (99.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Microsoft Internet_explorer — versions 8, 6, 7
- Microsoft Windows_2000
- Microsoft Windows_2003_server
- Microsoft Windows_7
- Microsoft Windows_server_2003
- Microsoft Windows_server_2008 — versions r2
- Microsoft Windows_vista
- Microsoft Windows_xp
- N/a — versions n/a
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
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.
Public proof-of-concept exploits
References
- secure@microsoft.com (x_refsource_CONFIRM, Broken Link)
- secure@microsoft.com (x_refsource_OSVDB, vdb-entry, Broken Link)
- secure@microsoft.com (x_refsource_SECUNIA, third-party-advisory, Vendor Advisory)
- secure@microsoft.com (x_refsource_CERT-VN, US Government Resource, Patch, third-party-advisory)
- secure@microsoft.com (x_refsource_CONFIRM, Patch, Broken Link, Vendor Advisory)
- secure@microsoft.com (vdb-entry, Broken Link, x_refsource_BID)
- secure@microsoft.com (US Government Resource, x_refsource_CERT, third-party-advisory)
- secure@microsoft.com (US Government Resource, x_refsource_CERT, third-party-advisory)
- secure@microsoft.com (vdb-entry, x_refsource_VUPEN, Vendor Advisory)
- secure@microsoft.com (vdb-entry, x_refsource_VUPEN, Vendor Advisory)
Frequently asked questions
- What is CVE-2010-0806?
- CVE-2010-0806 is a high-severity vulnerability in Microsoft Internet Explorer, classified under CWE-399. CVSS score: 8.8/10. Published 2010-03-10.
- How severe is CVE-2010-0806?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2010-0806 known to be exploited?
- Yes. CVE-2010-0806 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-05-20), indicating it is being actively exploited. 1 public proof-of-concept repositories are indexed.