CVE-2026-32216: CWE-476: NULL Pointer Dereference in Microsoft Windows 11 version 26H1
Null pointer dereference in Windows Redirected Drive Buffering allows an authorized attacker to deny service locally.
AI Analysis
Technical Summary
This vulnerability (CWE-476) in Windows 11 version 26H1 (build 10.0.28000.0) involves a null pointer dereference in the Redirected Drive Buffering component. An authorized local attacker can exploit this flaw to cause a denial of service condition, resulting in system instability or crash. The CVSS 3.1 base score is 5.5 (medium severity), reflecting local attack vector with low complexity and no user interaction required. Microsoft has released an official patch to remediate the issue.
Potential Impact
The impact is limited to denial of service (availability) on affected Windows 11 systems. There is no impact on confidentiality or integrity. The attacker must have local authorized access to exploit this vulnerability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32216 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
CVE-2026-32216: CWE-476: NULL Pointer Dereference in Microsoft Windows 11 version 26H1
Description
Null pointer dereference in Windows Redirected Drive Buffering allows an authorized attacker to deny service locally.
CVSS v3.1
Score 5.5medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-476) in Windows 11 version 26H1 (build 10.0.28000.0) involves a null pointer dereference in the Redirected Drive Buffering component. An authorized local attacker can exploit this flaw to cause a denial of service condition, resulting in system instability or crash. The CVSS 3.1 base score is 5.5 (medium severity), reflecting local attack vector with low complexity and no user interaction required. Microsoft has released an official patch to remediate the issue.
Potential Impact
The impact is limited to denial of service (availability) on affected Windows 11 systems. There is no impact on confidentiality or integrity. The attacker must have local authorized access to exploit this vulnerability. No known exploits are reported in the wild at this time.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the security update provided in the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32216 to remediate this vulnerability. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-03-11T01:49:58.660Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32216","vendor":"Microsoft"}]
Threat ID: 69de7a3682d89c981fd6bd4c
Added to database: 4/14/2026, 5:32:38 PM
Last enriched: 5/19/2026, 10:49:07 AM
Last updated: 5/30/2026, 7:21:23 PM
Views: 47
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