Known Exploited Vulnerability
7.8
HIGH
CVE-2025-32709
Microsoft Windows Ancillary Function Driver for Wi - [Actively Exploited]
Description

Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.

INFO

Published Date :

May 13, 2025, 5:16 p.m.

Last Modified :

May 16, 2025, 4:29 p.m.

Remotely Exploitable :

No

Impact Score :

5.9

Exploitability Score :

1.8
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

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

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.

Notes :

https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2025-32709 ; https://nvd.nist.gov/vuln/detail/CVE-2025-32709

Public PoC/Exploit Available at Github

CVE-2025-32709 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2025-32709 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Microsoft windows_server_2012
2 Microsoft windows_server_2016
3 Microsoft windows_server_2019
4 Microsoft windows_10_1607
5 Microsoft windows_10_1809
6 Microsoft windows_10_21h2
7 Microsoft windows_10_22h2
8 Microsoft windows_server_2022
9 Microsoft windows_11_22h2
10 Microsoft windows_10_1507
11 Microsoft windows_11_23h2
12 Microsoft windows_server_2022_23h2
13 Microsoft windows_server_23h2
14 Microsoft windows_server_2012_r2
15 Microsoft windows_server_2008_r2
16 Microsoft windows_server_2008_sp2
17 Microsoft windows_11_24h2
18 Microsoft windows_server_2025
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-32709.

URL Resource
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-32709 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

None

Updated: 2 days, 12 hours ago
0 stars 0 fork 0 watcher
Born at : June 1, 2025, 3:17 p.m. This repo has been linked 8 different CVEs too.

CISA Bot is a GitHub bot that automatically monitors the Cybersecurity and Infrastructure Security Agency (CISA) Known Exploited Vulnerabilities (KEV) Catalog. When new vulnerabilities are published in the KEV, the bot creates GitHub issues in this repository with detailed information about each vulnerability.

Python

Updated: 3 days, 21 hours ago
1 stars 0 fork 0 watcher
Born at : Oct. 29, 2024, 10:19 a.m. This repo has been linked 151 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-32709 vulnerability anywhere in the article.

  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 04, 2025 (2 hours, 1 minute ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 03, 2025 (6 hours, 1 minute ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 03, 2025 (12 hours, 1 minute ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 03, 2025 (14 hours, 1 minute ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 03, 2025 (16 hours, 1 minute ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 03, 2025 (18 hours, 1 minute ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 03, 2025 (20 hours, 1 minute ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 03, 2025 (22 hours, 1 minute ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 03, 2025 (1 day ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 02, 2025 (1 day, 8 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 02, 2025 (1 day, 12 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 02, 2025 (1 day, 14 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 02, 2025 (1 day, 16 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 02, 2025 (1 day, 18 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 02, 2025 (1 day, 20 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 02, 2025 (2 days, 2 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 01, 2025 (2 days, 8 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 01, 2025 (2 days, 10 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: Jun 01, 2025 (2 days, 22 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: May 31, 2025 (3 days, 12 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: May 31, 2025 (3 days, 15 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: May 31, 2025 (3 days, 17 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: May 31, 2025 (3 days, 21 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: May 31, 2025 (4 days, 1 hour ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: May 31, 2025 (4 days, 5 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: May 30, 2025 (4 days, 7 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: May 30, 2025 (4 days, 9 hours ago)
  • CrowdStrike.com
May 2025 Patch Tuesday: Five Zero-Days and Five Critical Vulnerabilities Among 72 CVEs

Microsoft has addressed 72 vulnerabilities in its May 2025 security update release. This month's patches include fixes for five actively exploited zero-day vulnerabilities, including a zero-day vulner ... Read more

Published Date: May 30, 2025 (4 days, 13 hours ago)

The following table lists the changes that have been made to the CVE-2025-32709 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    May. 16, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.14393.8066 *cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.17763.7314 *cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* versions up to (excluding) 10.0.17763.7314 *cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19044.5854 *cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.19045.5854 *cpe:2.3:o:microsoft:windows_11_22h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.22621.5335 *cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.22631.5335 *cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.26100.4061 *cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.14393.8066 *cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.17763.7314 *cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.20348.3692 *cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.25398.1611 *cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.26100.4061 *cpe:2.3:o:microsoft:windows_10_1507:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.10240.21014
    Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-32709 Types: Vendor Advisory
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    May. 14, 2025

    Action Type Old Value New Value
    Added Date Added 2025-05-13
    Added Due Date 2025-06-03
    Added 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.
    Added Vulnerability Name Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability
  • New CVE Received by [email protected]

    May. 13, 2025

    Action Type Old Value New Value
    Added Description Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
    Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-416
    Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-32709
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-32709 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-32709 weaknesses.

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
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Latest DB Update: Jun. 04, 2025 5:38