CVE-2010-0806

CVE-2010-0806 is a high-severity vulnerability in Microsoft Internet Explorer with a CVSS 3.x base score of 8.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-05-20). The underlying weakness is classified as CWE-399.

Key facts

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."

Frequently asked questions

What is 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."
How severe is CVE-2010-0806?
CVE-2010-0806 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2010-0806 being actively exploited?
Yes. CVE-2010-0806 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-05-20, which means active exploitation has been confirmed. It should be prioritised for remediation.
What products are affected by CVE-2010-0806?
CVE-2010-0806 primarily affects Microsoft Internet Explorer. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2010-0806?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
Does CVE-2010-0806 have an EU (EUVD) identifier?
Yes. CVE-2010-0806 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2010-0832. It is also flagged as exploited in the EUVD (since 2026-05-20).
When was CVE-2010-0806 published?
CVE-2010-0806 was published on 2010-03-10 and last updated on 2026-06-16.

References

Affected products (5)

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