Microsoft Internet Explorer: Internet Explorer Uninitialized Memory Corruption Vulnerability
Microsoft Internet Explorer
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. Added to CISA KEV on 2025-10-06.
Why this severity: CVSS 8.1 (CISA ADP, v3.1); actively exploited (CISA KEV)
- Started
- Oct 6, 2025
- Closed
- Oct 6, 2025
Affected
- See vendor advisory / CISA notes (versions not always listed in KEV feed)
Fixed in
- See vendor advisory linked in sources
Timeline1
CISA added CVE-2010-3962 to the KEV catalog (due 2025-10-27).
Advisories3
Notes & caveats
Derived from CISA KEV JSON feed catalogVersion 2026.10.21. CVSS from the CVE record (cvelistV5). Exact affected/fixed version strings are not always in the KEV record; verify against the vendor advisory URL. startedAt uses dateAdded (exploitation may have begun earlier; many entries are older CVEs newly confirmed as exploited in 2025). KEV says affected products could be end-of-life, so some devices may never get a fix.
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