Dismissed
(no matching packages found)
Permalink
CVE-2026-40378
7.5 HIGH
- CVSS version (CVSS): 3.1
- Attack Vector (AV): Network (N)
- Attack Complexity (AC): Low (L)
- Privileges Required (PR): None (N)
- User Interaction (UI): None (N)
- Scope (S): Unchanged (U)
- Confidentiality (C): None (N)
- Integrity (I): None (N)
- Availability (A): High (H)
- Exploit Code Maturity (E): Unproven (U)
- Remediation Level (RL): Official Fix (O)
- Report Confidence (RC): Confirmed (C)
- Modified Attack Vector (MAV): Network (N)
- Modified Attack Complexity (MAC): Low (L)
- Modified Privileges Required (MPR): None (N)
- Modified User Interaction (MUI): None (N)
- Modified Confidentiality (MC): None (N)
- Modified Scope (MS): Unchanged (U)
- Modified Integrity (MI): None (N)
- Modified Availability (MA): High (H)
Activity log
- Created & dismissed (no matching packages found) suggestion
Windows Local Security Authority Subsystem Service (LSASS) Denial of Service Vulnerability
Memory allocation with excessive size value in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
References
Affected products
Windows Server 2012
- <6.2.9200.26226
Windows Server 2016
- <10.0.14393.9339
Windows Server 2019
- <10.0.17763.9020
Windows Server 2022
- <10.0.20348.5386
Windows Server 2025
- <10.0.26100.33158
Windows Server 2012 R2
- <6.3.9600.23291
Windows 10 Version 1607
- <10.0.14393.9339
Windows 10 Version 1809
- <10.0.17763.9020
Windows 10 Version 21H2
- <10.0.19044.7548
Windows 10 Version 22H2
- <10.0.19045.7548
Windows 11 Version 23H2
- <10.0.22631.7376
Windows 11 Version 24H2
- <10.0.26100.8875
Windows 11 Version 25H2
- <10.0.26200.8875
Windows 11 version 23H2
- <10.0.22631.7376
Windows 11 version 26H1
- <10.0.28000.2269
Windows Server 2012 (Server Core installation)
- <6.2.9200.26226
Windows Server 2016 (Server Core installation)
- <10.0.14393.9339
Windows Server 2019 (Server Core installation)
- <10.0.17763.9020
Windows Server 2025 (Server Core installation)
- <10.0.26100.33158
Windows Server 2012 R2 (Server Core installation)
- <6.3.9600.23291