421 bugs, 62 critical, one exploited
Talos counts 421 Microsoft vulnerabilities in August 2026, 62 of them critical, and notes one flaw already exploited in the wild: CVE-2026-68820 in the Windows Ancillary Function Driver for WinSock. It is a local privilege escalation bug. Attackers use that kind of flaw right after initial access, to turn a foothold into system control.
Talos also pulls out the vulnerabilities Microsoft rates as more likely to be exploited. That is a shorter list to work from when deciding what to monitor and whose patches to chase.
WDS, SharePoint and DHCP top Microsoft’s likely list
Talos highlights CVE-2026-62893 in Windows Deployment Services TFTP Server, CVE-2026-65665 in Microsoft SharePoint Server, and CVE-2026-62823 in Windows DHCP Server as more-likely exploitation candidates. A missed patch on any of these servers affects far more than one workstation.
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The same article also calls out CVE-2026-62818 in AD CS, the Windows DNS Server set led by CVE-2026-62878, CVE-2026-62816 in RMCAST, CVE-2026-62819 in RRAS, and CVE-2026-62889 in SSTP. These are high-trust network services, and remote or network-adjacent abuse of them reaches well beyond the host.
Snort rules for the network services
Talos shipped Snort coverage alongside the list. That makes these bugs a detection job as well as a patching job.
That matters most for services like WDS, DNS, DHCP, and RRAS where defenders may have log coverage but weaker packet-level context. Signatures will not protect an unpatched internet-facing system. They can show scanning, exploit attempts or follow-on activity while patching is still underway.
SharePoint goes to service owners, Office to endpoint teams
Talos also highlights SharePoint privilege-escalation issues CVE-2026-62827 and CVE-2026-64921, along with a very long tail of Office and Excel memory-corruption flaws. SharePoint fixes belong with the service owners today. The Office bugs are mostly an email and endpoint hardening problem.
Splitting them keeps one team from drowning in the whole month. Not every critical Microsoft CVE belongs in the same queue.
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Monitor the shortlist while patches roll out
Use the Talos piece to sharpen monitoring while patching catches up.
- Promote Talos' more-likely exploitation shortlist into the same queue as emergency patch verification for WDS, DHCP, SharePoint, AD CS, DNS, and related services.
- Check whether your IDS, packet capture, and network telemetry can actually observe the services named in the article before assuming Snort coverage alone solves the problem.
- Treat SharePoint and exposed Microsoft infrastructure separately from the long tail of Office client issues so the highest-consequence assets get attention first.
- Review recent suspicious network activity around named services for evidence of scanning or malformed requests while change windows are still open.
- Use the article as a bridge between vulnerability management and detection engineering instead of letting each team read a different version of the month.
Source Context
Primary source: Cisco Talos’ August 2026 Patch Tuesday write-up, focusing on its prominent vulnerabilities and likely-exploitation shortlist.
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