CVE-2026-45476: CWE-416: Use After Free in Microsoft Linux kernel - Microsoft MANA Network Driver
Use after free in Linux MANA Driver allows an authorized attacker to elevate privileges locally.
AI Analysis
Technical Summary
CVE-2026-45476 is a use-after-free vulnerability (CWE-416) in the Microsoft MANA Network Driver within the Linux kernel. This vulnerability enables an authorized attacker with local access and high privileges to escalate their privileges further on the affected system. The vulnerability has been assigned a CVSS v3.1 base score of 8.2, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, as detailed in their security advisory.
Potential Impact
The vulnerability allows an authorized local attacker with high privileges to elevate their privileges, potentially leading to full system compromise. Confidentiality, integrity, and availability of the affected system can be fully impacted due to this use-after-free flaw in the network driver.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor-provided patch as soon as possible to remediate this vulnerability. Refer to the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45476 for detailed patching instructions.
CVE-2026-45476: CWE-416: Use After Free in Microsoft Linux kernel - Microsoft MANA Network Driver
Description
Use after free in Linux MANA Driver allows an authorized attacker to elevate privileges locally.
CVSS v3.1
Score 8.2high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-45476 is a use-after-free vulnerability (CWE-416) in the Microsoft MANA Network Driver within the Linux kernel. This vulnerability enables an authorized attacker with local access and high privileges to escalate their privileges further on the affected system. The vulnerability has been assigned a CVSS v3.1 base score of 8.2, indicating high impact on confidentiality, integrity, and availability. Microsoft has published an official fix for this vulnerability, as detailed in their security advisory.
Potential Impact
The vulnerability allows an authorized local attacker with high privileges to elevate their privileges, potentially leading to full system compromise. Confidentiality, integrity, and availability of the affected system can be fully impacted due to this use-after-free flaw in the network driver.
Mitigation Recommendations
An official fix is available from Microsoft. Users and administrators should apply the vendor-provided patch as soon as possible to remediate this vulnerability. Refer to the Microsoft security advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45476 for detailed patching instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-05-12T16:06:43.100Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45476","vendor":"Microsoft"}]
Threat ID: 6a284cdc8dd33fbd85664d3f
Added to database: 06/09/2026, 17:26:52 UTC
Last enriched: 07/29/2026, 21:56:41 UTC
Last updated: 07/31/2026, 21:26:44 UTC
Views: 123
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