Signal
Microsoft issues August 2026 Patch Tuesday fixing nearly 400 vulnerabilities including an exploited zero-day
Evidence first: scan the strongest sources, then decide whether to go deeper.
Published 2026-08-11 17:54 UTCUpdated 2026-08-12 02:27 UTC
rss
cvepatchmicrosoftsapwindowssecurity_advisory
Trend in the last 24h
Source links open
Source links and full evidence are open here. Archive history, compare-over-time, alerts, exports, API, integrations, and workflow are paid.
No card needed for the free brief.
Evidence trail (top sources)
top sources (4 domains)domains are deduped. counts indicate coverage, not truth.4 top sources shown
Overview
Microsoft released its August 2026 Patch Tuesday updates addressing 398 to 421 security vulnerabilities across Windows and related products.
Entities
MicrosoftSAPWinSockSAP Commerce CloudTodd SchellJack BicerTyler Reguly
Score total
1.83
Momentum 24h
8
Posts
8
Origins
7
Source types
1
Duplicate ratio
0%
Why now
- The zero-day vulnerability is already exploited in the wild, demanding urgent patching.
- The August 2026 Patch Tuesday is among the largest monthly updates, reflecting accelerated vulnerability discovery.
- Organizations need to update promptly to mitigate risks from multiple critical flaws disclosed simultaneously.
Why it matters
- The actively exploited zero-day in Windows WinSock driver poses immediate risk to systems if unpatched.
- The large volume of critical and important vulnerabilities patched highlights the growing attack surface in widely used software.
- SAP's maximum severity vulnerability in Commerce Cloud underscores risks in enterprise cloud platforms.
LLM analysis
Topic mix: lowPromo risk: lowSource quality: high
Recurring claims
- Microsoft patched a zero-day privilege escalation vulnerability in the Windows WinSock driver actively exploited in the wild
- Microsoft released patches for nearly 400 vulnerabilities including 42 critical flaws in August 2026
- SAP issued 29 security patches including a maximum severity improper authorization vulnerability in SAP Commerce Cloud
How sources frame it
- CSO Online: neutral
- Brian Krebs: neutral
- SecurityWeek: neutral
All evidence
All evidence
ALERT Microsoft Windows: CVSS (Max): 9.8
AusCERT - Bulletins · portal.auscert.org.au · 2026-08-12 02:27 UTC
Patch Tuesday August 2026: A zero-day WinSock driver hole under exploit, and a maximum severity SAP vulnerability
CSO Online · csoonline.com · 2026-08-12 00:45 UTC
Microsoft Plugs Nearly 400 Security Holes
krebsonsecurity · krebsonsecurity.com · 2026-08-11 21:28 UTC
Microsoft Patches 398 Flaws Including a Windows Driver Zero-Day Under Active Attack
thehackernews · thehackernews.com · 2026-08-11 20:10 UTC
Microsoft security advisory – August 2026 monthly rollup (AV26-804)
Canadian Centre for Cyber Security - Alerts · cyber.gc.ca · 2026-08-11 19:58 UTC
August 2026 Patch Tuesday: Microsoft Fixes 421 CVEs, One Exploited Zero-Day
SecurityWeek · securityweek.com · 2026-08-11 18:46 UTC
Show filters & breakdown
Posts loaded: 0Publishers: 6Origin domains: 6Duplicates: -
Showing 6 / 0
Top publishers (this list)
- AusCERT - Bulletins (1)
- CSO Online (1)
- krebsonsecurity (1)
- thehackernews (1)
- Canadian Centre for Cyber Security - Alerts (1)
- SecurityWeek (1)
Top origin domains (this list)
- portal.auscert.org.au (1)
- csoonline.com (1)
- krebsonsecurity.com (1)
- thehackernews.com (1)
- cyber.gc.ca (1)
- securityweek.com (1)