Microsoft Patches Record 1,413 Vulnerabilities, Including Exploited Windows Zero-Day
Summary
Microsoft has released a record-breaking number of security patches, addressing 1,413 vulnerabilities in its products. Among these is CVE-2026-96951, a zero-day flaw in Windows that bypasses security features and has already been exploited by attackers.
IFF Assessment
The patching of a zero-day vulnerability that has already been exploited in the wild represents a significant threat to defenders as attackers may still be leveraging this flaw.
Severity
CISA KEV: Listed as actively exploited. Federal patch due: October 16, 2026. Known ransomware use: Unknown.
Defender Context
This highlights the critical importance of prompt patching for Microsoft products. Defenders should prioritize applying these updates to mitigate the risk of exploitation of known vulnerabilities, especially those with active in-the-wild exploitation.