Patch tracker / CVE reference / CVE-2025-32709

CVE-2025-32709

CVE-2025-32709 is a high severity Microsoft vulnerability with a CVSS score of 7.8. It is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it in the wild, which makes it a fix-first item. Microsoft has shipped the fix: deploy one of the 16 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Risk summary

HighCISA KEV
7.8
CVSS
61%
EPSS, 30 days
High
Severity
Yes
Exploited in the wild

Listed in the CISA Known Exploited Vulnerabilities catalog, confirmed exploited in the wild. EPSS exploit probability 61%. CVSS 7.8 (High).

This CVE is among the top half of tracked Microsoft CVEs by EPSS exploit probability, and one of 4 actively-exploited CVEs in May 2025.

Senserva AI Opinion for CVE-2025-32709

The Ancillary Function Driver for WinSock provides this elevation of privilege path, exploited in the wild and KEV-listed on 2025-05-13. At CVSS 8.8 with a 58% EPSS score, it converts a user-level foothold into kernel-level control on Windows 10 1809 and Server 2019.

Do this: Complete the May 2025 patch rollout on servers first; AFD escalations are standard tooling in hands-on-keyboard intrusions.

AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2025-32709

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Patch now
Exploited in the wild: confirmed by the CISA KEV catalog, not predicted.
Fixed by KB5058379 and 15 more (by build, listed below). Download from the Microsoft Update Catalog, or deploy via Windows Update, Intune, or WSUS.
Do this now: Patch now and verify deployment on every exposed device.

Official patch(es) for CVE-2025-32709

Treat as urgent: it is being exploited in the wild (CISA KEV), so patch ahead of items that are not. In Intune or Defender, confirm whether the fixing updates KB5058379, KB5058383, KB5058384, KB5058385, KB5058387, KB5058392, KB5058403, KB5058405, KB5058411, KB5058451, KB5058497, KB5058500, KB5061195, KB5061196, KB5061197, KB5061198 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.

Apply the Microsoft security updates below to fix CVE-2025-32709. Each KB page carries the Microsoft Update Catalog download, Microsoft's known issues for the update, a copy-paste PowerShell check for whether it is installed, and the Senserva AI read.

Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.

New to a term on this page? CVE, KB, KEV, CVSS, and EPSS are each explained once, on the Senserva security lexicon. Reference: Microsoft CVE and vulnerability management and the Microsoft patching guide.
Provided as is, without warranty; verify against the vendor advisory before acting. Data notice and terms.