CVE-2025-32709
Microsoft Windows Ancillary Function Driver for WinSock Use-After-Free Vulnerability
Severity Score
7.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
Yes
*KEV
Decision
Act
*SSVC
Descriptions
Use after free in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
Microsoft Windows Ancillary Function Driver for WinSock contains a use-after-free vulnerability that allows an authorized attacker to escalate privileges to administrator.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:Act
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2025-04-09 CVE Reserved
- 2025-05-13 CVE Published
- 2025-05-13 Exploited in Wild
- 2025-05-14 CVE Updated
- 2025-05-15 EPSS Updated
- 2025-06-03 KEV Due Date
- ---------- First Exploit
CWE
- CWE-416: Use After Free
CAPEC
References (1)
| URL | Tag | Source |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-32709 | 2025-05-14 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Microsoft Search vendor "Microsoft" | Windows 10 Version 1809 Search vendor "Microsoft" for product "Windows 10 Version 1809" | >= 10.0.17763.0 < 10.0.17763.7314 Search vendor "Microsoft" for product "Windows 10 Version 1809" and version " >= 10.0.17763.0 < 10.0.17763.7314" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2019 Search vendor "Microsoft" for product "Windows Server 2019" | >= 10.0.17763.0 < 10.0.17763.7314 Search vendor "Microsoft" for product "Windows Server 2019" and version " >= 10.0.17763.0 < 10.0.17763.7314" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2019 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2019 (Server Core Installation)" | >= 10.0.17763.0 < 10.0.17763.7314 Search vendor "Microsoft" for product "Windows Server 2019 (Server Core Installation)" and version " >= 10.0.17763.0 < 10.0.17763.7314" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2022 Search vendor "Microsoft" for product "Windows Server 2022" | >= 10.0.20348.0 < 10.0.20348.3692 Search vendor "Microsoft" for product "Windows Server 2022" and version " >= 10.0.20348.0 < 10.0.20348.3692" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 Version 21H2 Search vendor "Microsoft" for product "Windows 10 Version 21H2" | >= 10.0.19044.0 < 10.0.19044.5854 Search vendor "Microsoft" for product "Windows 10 Version 21H2" and version " >= 10.0.19044.0 < 10.0.19044.5854" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 11 Version 22H2 Search vendor "Microsoft" for product "Windows 11 Version 22H2" | >= 10.0.22621.0 < 10.0.22621.5335 Search vendor "Microsoft" for product "Windows 11 Version 22H2" and version " >= 10.0.22621.0 < 10.0.22621.5335" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 Version 22H2 Search vendor "Microsoft" for product "Windows 10 Version 22H2" | >= 10.0.19045.0 < 10.0.19045.5854 Search vendor "Microsoft" for product "Windows 10 Version 22H2" and version " >= 10.0.19045.0 < 10.0.19045.5854" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2025 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2025 (Server Core Installation)" | >= 10.0.26100.0 < 10.0.26100.4061 Search vendor "Microsoft" for product "Windows Server 2025 (Server Core Installation)" and version " >= 10.0.26100.0 < 10.0.26100.4061" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 11 Version 22H3 Search vendor "Microsoft" for product "Windows 11 Version 22H3" | >= 10.0.22631.0 < 10.0.22631.5335 Search vendor "Microsoft" for product "Windows 11 Version 22H3" and version " >= 10.0.22631.0 < 10.0.22631.5335" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 11 Version 23H2 Search vendor "Microsoft" for product "Windows 11 Version 23H2" | >= 10.0.22631.0 < 10.0.22631.5335 Search vendor "Microsoft" for product "Windows 11 Version 23H2" and version " >= 10.0.22631.0 < 10.0.22631.5335" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2022, 23H2 Edition (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2022, 23H2 Edition (Server Core Installation)" | >= 10.0.25398.0 < 10.0.25398.1611 Search vendor "Microsoft" for product "Windows Server 2022, 23H2 Edition (Server Core Installation)" and version " >= 10.0.25398.0 < 10.0.25398.1611" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 11 Version 24H2 Search vendor "Microsoft" for product "Windows 11 Version 24H2" | >= 10.0.26100.0 < 10.0.26100.4061 Search vendor "Microsoft" for product "Windows 11 Version 24H2" and version " >= 10.0.26100.0 < 10.0.26100.4061" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2025 Search vendor "Microsoft" for product "Windows Server 2025" | >= 10.0.26100.0 < 10.0.26100.4061 Search vendor "Microsoft" for product "Windows Server 2025" and version " >= 10.0.26100.0 < 10.0.26100.4061" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 Version 1507 Search vendor "Microsoft" for product "Windows 10 Version 1507" | >= 10.0.10240.0 < 10.0.10240.21014 Search vendor "Microsoft" for product "Windows 10 Version 1507" and version " >= 10.0.10240.0 < 10.0.10240.21014" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows 10 Version 1607 Search vendor "Microsoft" for product "Windows 10 Version 1607" | >= 10.0.14393.0 < 10.0.14393.8066 Search vendor "Microsoft" for product "Windows 10 Version 1607" and version " >= 10.0.14393.0 < 10.0.14393.8066" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2016 Search vendor "Microsoft" for product "Windows Server 2016" | >= 10.0.14393.0 < 10.0.14393.8066 Search vendor "Microsoft" for product "Windows Server 2016" and version " >= 10.0.14393.0 < 10.0.14393.8066" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2016 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2016 (Server Core Installation)" | >= 10.0.14393.0 < 10.0.14393.8066 Search vendor "Microsoft" for product "Windows Server 2016 (Server Core Installation)" and version " >= 10.0.14393.0 < 10.0.14393.8066" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2012 Search vendor "Microsoft" for product "Windows Server 2012" | >= 6.2.9200.0 < 6.2.9200.25475 Search vendor "Microsoft" for product "Windows Server 2012" and version " >= 6.2.9200.0 < 6.2.9200.25475" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2012 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2012 (Server Core Installation)" | >= 6.2.9200.0 < 6.2.9200.25475 Search vendor "Microsoft" for product "Windows Server 2012 (Server Core Installation)" and version " >= 6.2.9200.0 < 6.2.9200.25475" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2012 R2 Search vendor "Microsoft" for product "Windows Server 2012 R2" | >= 6.3.9600.0 < 6.3.9600.22577 Search vendor "Microsoft" for product "Windows Server 2012 R2" and version " >= 6.3.9600.0 < 6.3.9600.22577" | en |
Affected
| ||||||
| Microsoft Search vendor "Microsoft" | Windows Server 2012 R2 (Server Core Installation) Search vendor "Microsoft" for product "Windows Server 2012 R2 (Server Core Installation)" | >= 6.3.9600.0 < 6.3.9600.22577 Search vendor "Microsoft" for product "Windows Server 2012 R2 (Server Core Installation)" and version " >= 6.3.9600.0 < 6.3.9600.22577" | en |
Affected
| ||||||