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CVE-2026-83516 Out-of-bounds read in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny…

Description

Out-of-bounds read in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.

Affected products and versions

Product Affected versions Fixed in
Windows 10 Version 1809 10.0 10.0.17763.0 → < 10.0.17763.9376 10.0.17763.9376
Windows 11 Version 24H2 10.0 10.0.26100.0 → < 10.0.26100.9711 10.0.26100.9711
Windows 11 Version 25H2 10.0 10.0.26200.0 → < 10.0.26200.9711 10.0.26200.9711
Windows 11 version 26H1 10.0 10.0.28000.0 → < 10.0.28000.3231 10.0.28000.3231
Windows 11 Version 26H2 10.0 10.0.26300.0 → < 10.0.26300.9711 10.0.26300.9711
Windows Server 2019 10.0 10.0.17763.0 → < 10.0.17763.9376 10.0.17763.9376
Windows Server 2019 (Server Core installation) 10.0 10.0.17763.0 → < 10.0.17763.9376 10.0.17763.9376
Windows Server 2022 10.0 10.0.20348.0 → < 10.0.20348.5761 10.0.20348.5761
Windows Server 2025 10.0 10.0.26100.0 → < 10.0.26100.33650 10.0.26100.33650
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Product Affected versions Fixed in
Windows Server 2025 (Server Core installation) 10.0 10.0.26100.0 → < 10.0.26100.33650 10.0.26100.33650

References

Timeline

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The 5349 CVEs of Windows 10 Version 1809 →
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