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Description
Stack-based buffer overflow in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally.
PUBLISHED Reserved 2025-07-16 | Published 2025-09-09 | Updated 2025-09-25 | Assigner microsoft
HIGH: 7.0CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
Problem types
CWE-121: Stack-based Buffer Overflow
Product status
10.0.17763.0 (custom) before 10.0.17763.7792
affected
10.0.17763.0 (custom) before 10.0.17763.7792
affected
10.0.17763.0 (custom) before 10.0.17763.7792
affected
10.0.20348.0 (custom) before 10.0.20348.4171
affected
10.0.19044.0 (custom) before 10.0.19044.6332
affected
10.0.22621.0 (custom) before 10.0.22621.5909
affected
10.0.19045.0 (custom) before 10.0.19045.6332
affected
10.0.26100.0 (custom) before 10.0.26100.6584
affected
10.0.22631.0 (custom) before 10.0.22631.5909
affected
10.0.22631.0 (custom) before 10.0.22631.5909
affected
10.0.25398.0 (custom) before 10.0.25398.1849
affected
10.0.26100.0 (custom) before 10.0.26100.6584
affected
10.0.26100.0 (custom) before 10.0.26100.6584
affected
10.0.10240.0 (custom) before 10.0.10240.21128
affected
10.0.14393.0 (custom) before 10.0.14393.8422
affected
10.0.14393.0 (custom) before 10.0.14393.8422
affected
10.0.14393.0 (custom) before 10.0.14393.8422
affected
6.0.6003.0 (custom) before 6.0.6003.23529
affected
6.0.6003.0 (custom) before 6.0.6003.23529
affected
6.0.6003.0 (custom) before 6.0.6003.23529
affected
6.1.7601.0 (custom) before 6.1.7601.27929
affected
6.1.7601.0 (custom) before 6.1.7601.27929
affected
6.2.9200.0 (custom) before 6.2.9200.25675
affected
6.2.9200.0 (custom) before 6.2.9200.25675
affected
6.3.9600.0 (custom) before 6.3.9600.22774
affected
6.3.9600.0 (custom) before 6.3.9600.22774
affected
References
msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54099 (Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability) vendor-advisory
cve.org
(CVE-2025-54099)
nvd.nist.gov
(CVE-2025-54099)
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