CVE-2026-20875: CWE-476: NULL Pointer Dereference in Microsoft Windows 10 Version 1607
Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-20875) is a null pointer dereference in the LSASS component of Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires no privileges or user interaction and can be triggered remotely over the network, resulting in a denial of service condition. The CVSS 3.1 base score is 7.5, reflecting high severity due to the ease of exploitation and impact on availability. The vulnerability is tracked as CWE-476 (NULL Pointer Dereference). A patch is available from Microsoft to remediate this issue.
Potential Impact
Successful exploitation leads to denial of service by crashing the LSASS process, which can cause system instability or reboot. There is no impact on confidentiality or integrity. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A patch is available from Microsoft to fix this vulnerability. It is recommended to apply the official update for Windows 10 Version 1607 (build 10.0.14393.0) as soon as possible to prevent denial of service attacks. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-20875: CWE-476: NULL Pointer Dereference in Microsoft Windows 10 Version 1607
Description
Null pointer dereference in Windows Local Security Authority Subsystem Service (LSASS) allows an unauthorized attacker to deny service over a network.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-20875) is a null pointer dereference in the LSASS component of Windows 10 Version 1607 (build 10.0.14393.0). Exploitation requires no privileges or user interaction and can be triggered remotely over the network, resulting in a denial of service condition. The CVSS 3.1 base score is 7.5, reflecting high severity due to the ease of exploitation and impact on availability. The vulnerability is tracked as CWE-476 (NULL Pointer Dereference). A patch is available from Microsoft to remediate this issue.
Potential Impact
Successful exploitation leads to denial of service by crashing the LSASS process, which can cause system instability or reboot. There is no impact on confidentiality or integrity. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A patch is available from Microsoft to fix this vulnerability. It is recommended to apply the official update for Windows 10 Version 1607 (build 10.0.14393.0) as soon as possible to prevent denial of service attacks. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2025-12-03T05:54:20.387Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 69668ae1a60475309f9ae172
Added to database: 1/13/2026, 6:11:45 PM
Last enriched: 4/3/2026, 12:48:14 PM
Last updated: 5/10/2026, 9:11:37 AM
Views: 119
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