GoKawiilMicrosoft's September 2026 Patch Tuesday fixes record 966 flaws, two exploited zero-days
Microsoft's latest Patch Tuesday update addresses 966 vulnerabilities, the largest batch it has ever released in a single month, including 105 critical-rated bugs. Two of the flaws are zero-days already being actively exploited by attackers. This follows 570 fixes in August and 400 the month before, showing a sharp month-over-month escalation.
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The growing size of these monthly patch releases signals both an expanding attack surface across Microsoft's software ecosystem and increasing scrutiny from security researchers. Active exploitation of zero-days before patches ship means enterprises face a narrowing window to apply updates before attackers strike, raising urgency for IT teams managing large Windows environments.
- 966 vulnerabilities patched, Microsoft's largest Patch Tuesday release to date
- 105 critical bugs fixed, with 81 allowing remote code execution
- Two zero-day flaws were already being exploited in real-world attacks
YubiKey 5 NFC Security Key — When zero-days are being exploited in the wild, hardened login matters as much as patching. The YubiKey 5 NFC adds a physical second factor for Microsoft accounts, Windows sign-in, and countless other services, and it works over USB-A or by tapping a phone with NFC. It's a small, durable keychain-sized way to make stolen credentials far less useful to attackers.
See YubiKey 5 NFC Security Key on Amazon → Affiliate link — we may earn a commission on purchases, at no extra cost to you. Product picked by AI based on this article; it is not a tested recommendation.Source: it.slashdot.org, 2026-09-09
Published there as: “Microsoft Breaks Another Patch Tuesday Record”
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