9 Realms Cybersecurity
AdvisoriesCVE-2010-0806

Microsoft Internet Explorer Use-After-Free Vulnerability

MicrosoftInternet ExplorerAdded May 20, 2026

CISA Known Exploited Vulnerabilities Data

Description

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.

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.

CISA Due Date

June 3, 2026 (federal agency requirement)

Known Ransomware Campaign Use

Unknown

Notes

https://learn.microsoft.com/en-us/security-updates/securityadvisories/2010/981374 ; https://nvd.nist.gov/vuln/detail/CVE-2010-0806

External References

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Data sourced from the CISA Known Exploited Vulnerabilities catalog. CISA does not endorse any commercial product or service.

CVE-2010-0806 — Microsoft Internet Explorer Use-After-Free Vulnerability | 9 Realms Security