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Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability

Microsoft Windows Ancillary Function Driver for WinSock contains a use-after-free vulnerability that allows an authorized attacker to escalate privileges to administrator. CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Structured advisory · Revision 1Original source
Evidence and details

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: kev:CVE-2025-32709

Windows

Source reference: /product

Affected versions
Not stated in this record
Fixed versions
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Prerequisites
Not stated in this record
Related CVEs
CVE-2025-32709

Source reference: /cveID

Publisher severity

No explicit severity was provided.

Event
#416 · Revision 1
Added to Heist Feed
Publisher date
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