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Description

Access of resource using incompatible type ('type confusion') in Windows Defender Firewall Service allows an authorized attacker to elevate privileges locally.

PUBLISHED Reserved 2025-07-31 | Published 2025-09-09 | Updated 2026-02-20 | Assigner microsoft




MEDIUM: 6.7CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Problem types

CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')

Product status

10.0.10240.0 (custom) before 10.0.10240.21128
affected

10.0.14393.0 (custom) before 10.0.14393.8422
affected

10.0.17763.0 (custom) before 10.0.17763.7792
affected

10.0.19044.0 (custom) before 10.0.19044.6332
affected

10.0.19045.0 (custom) before 10.0.19045.6332
affected

10.0.22621.0 (custom) before 10.0.22621.5909
affected

10.0.22631.0 (custom) before 10.0.22631.5909
affected

10.0.22631.0 (custom) before 10.0.22631.5909
affected

10.0.26100.0 (custom) before 10.0.26100.6584
affected

6.1.7601.0 (custom) before 6.1.7601.27929
affected

6.1.7601.0 (custom) before 6.1.7601.27929
affected

6.0.6003.0 (custom) before 6.0.6003.23529
affected

6.0.6003.0 (custom) before 6.0.6003.23529
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

10.0.14393.0 (custom) before 10.0.14393.8422
affected

10.0.14393.0 (custom) before 10.0.14393.8422
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

10.0.25398.0 (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

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2025-54915 (Windows Defender Firewall Service Elevation of Privilege Vulnerability) vendor-advisory patch

cve.org (CVE-2025-54915)

nvd.nist.gov (CVE-2025-54915)

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