CVE-2025-32709HIGH 7.8CISA KEVEPSS p72.0%

CVE-2025-32709Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability

Microsoft / Windows

Description

Microsoft Windows Ancillary Function Driver for WinSock contains a use-after-free vulnerability that allows an authorized attacker to escalate privileges to administrator.

Scoring

CVSS 3.17.8 (HIGH)
VectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS1.56% probability of exploitation · percentile 72.0% · 2026-06-19T12:03:05Z
Published2025-05-13
Last modified2026-02-13

CISA KEV entry

Added to KEV: 2025-05-13

Underlying weaknesses· 1

CWE-416

References

  1. https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-32709
  2. https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-32709

1

TypeTargetConfidenceTier
WeaknessUse After Freecwe-4160%live

(incoming)1

TypeTargetConfidenceTier
KEVEntryMicrosoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerabilitykev-cve-2025-327090%live

Related by meaning· 6

Nearest entities by semantic similarity across the cs-graph corpus.

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CVE-2026-34335
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CVE-2026-42911
CVE
Microsoft Windows Ancillary Function Driver for WinSock Privilege Escalation Vulnerability
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Microsoft Windows Ancillary Function Driver for WinSock Heap-Based Buffer Overflow Vulnerability
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CVE-2026-45603
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CVE-2026-45596
Sourced from NVD + CISA KEV + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.