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.

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."

Published 2010-03-10 · last modified 2026-06-16.

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.

EPSS exploit prediction

EPSS: 0.822 (99.7th percentile), scored 2026-10-18.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.822 · newest: 0.822 · change: +0.001

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

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2026-05-20. 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: 2026-06-03.

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

rapid7/metasploit-framework

References

blogs.technet.com/msrc/archive/2010/03/09/security-advisory-981374-released.aspx (Broken Link)
osvdb.org/62810 (vdb-entry, Broken Link)
secunia.com/advisories/38860 (third-party-advisory, Vendor Advisory)
www.kb.cert.org/vuls/id/744549 (US Government Resource, Patch, third-party-advisory)
www.microsoft.com/technet/security/advisory/981374.mspx (Patch, Broken Link, Vendor Advisory)
www.securityfocus.com/bid/38615 (vdb-entry, Broken Link)
www.us-cert.gov/cas/techalerts/TA10-068A.html (US Government Resource, third-party-advisory)
www.us-cert.gov/cas/techalerts/TA10-089A.html (US Government Resource, third-party-advisory)
www.vupen.com/english/advisories/2010/0567 (vdb-entry, Vendor Advisory)
www.vupen.com/english/advisories/2010/0744 (vdb-entry, 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.