CVE-2010-3962MicrosoftOtherOctober 6, 2025

Microsoft Internet Explorer Uninitialized Memory Corruption Vulnerability

High 8.1Actively exploited

Description

Microsoft Internet Explorer contains an uninitialized memory corruption vulnerability that could allow for remote code execution. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

What to do

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

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Details

Vendor
Microsoft
Product
Internet Explorer
CVE
CVE-2010-3962
Affected versions
Internet Explorer 6: all versions 6
Internet Explorer 7: all versions 7
Internet Explorer 8: all versions 8 (from the advisory and NVD; check the exact builds in the official advisory)
CVSS score
8.1
Actively exploited
Yes, listed in the CISA Known Exploited Vulnerabilities catalog
CISA due date
October 27, 2025 (deadline for US federal agencies: a good benchmark for you too)
Source
CISA KEV – original advisory
Published
October 6, 2025

The description and the recommended action are quoted from the public advisory; severity, exploitation status and affected versions are compiled automatically from public sources and may contain errors. The vendor's original advisory prevails: check it before taking action. This information is provided without warranty and does not replace a professional assessment.

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