Microsoft just released its biggest Patch Tuesday ever, with a mammoth 622 fixes including three dangerous zero-days
- Microsoft’s July 2026 Patch Tuesday fixed a record 622 vulnerabilities, including 58 critical, two exploited in the wild, and one publicly disclosed, plus 428 Chromium bugs
- Actively abused flaws include CVE‑2026‑56155 (AD FS privilege escalation) and CVE‑2026‑56164 (SharePoint privilege escalation), alongside notable issues in BitLocker and Copilot
- Surge in fixes is linked to Microsoft’s use of Anthropic’s Mythos AI, with patch volumes rising sharply since its adoption
Microsoft has released its July 2026 Patch Tuesday download, marking another record-breaking update, addressing hundreds of flaws across the ecosystem.
The release, which is currently rolling out to Microsoft users, fixes a staggering 622 vulnerabilities, including 58 critical-severity ones, two that were observed as being abused in the wild, and one which has already been publicly disclosed.
On top of that, Microsoft shipped fixes for another 428 Chromium bugs, as well.
A jump in numbers
There are simply too many vulnerabilities to mention...
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