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Description

Protection mechanism failure in Windows Mark of the Web (MOTW) allows an unauthorized attacker to bypass a security feature over a network.

PUBLISHED Reserved 2026-05-12 | Published 2026-06-09 | Updated 2026-06-10 | Assigner microsoft




MEDIUM: 5.4CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L/E:U/RL:O/RC:C

Problem types

CWE-693: Protection Mechanism Failure

Product status

10.0.14393.0 (custom) before 10.0.14393.9234
affected

10.0.17763.0 (custom) before 10.0.17763.8880
affected

10.0.19044.0 (custom) before 10.0.19044.7417
affected

10.0.19045.0 (custom) before 10.0.19045.7417
affected

10.0.22631.0 (custom) before 10.0.22631.7219
affected

10.0.22631.0 (custom) before 10.0.22631.7219
affected

10.0.26100.0 (custom) before 10.0.26100.8655
affected

10.0.26200.0 (custom) before 10.0.26200.8655
affected

10.0.28000.0 (custom) before 10.0.28000.2269
affected

6.3.9600.0 (custom) before 6.3.9600.23228
affected

6.3.9600.0 (custom) before 6.3.9600.23228
affected

10.0.14393.0 (custom) before 10.0.14393.9234
affected

10.0.14393.0 (custom) before 10.0.14393.9234
affected

10.0.17763.0 (custom) before 10.0.17763.8880
affected

10.0.17763.0 (custom) before 10.0.17763.8880
affected

10.0.20348.0 (custom) before 10.0.20348.5256
affected

10.0.26100.0 (custom) before 10.0.26100.32995
affected

10.0.26100.0 (custom) before 10.0.26100.32995
affected

References

msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45595 (Windows Mark of the Web Security Feature Bypass Vulnerability) vendor-advisory patch

cve.org (CVE-2026-45595)

nvd.nist.gov (CVE-2026-45595)

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