CVE-2026-45476 Microsoft Azure Network Adapter Elevation of Privilege Vulnerability
A use-after-free flaw in the Microsoft MANA Linux driver allows local attackers to elevate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-45476?
CVE-2026-45476 is a high-severity use after free vulnerability in Linux kernel - Microsoft MANA Network Driver, published on 9 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
Use after free in Linux MANA Driver allows an authorized attacker to elevate privileges locally.
Weakness: CWE-416
Which versions are affected by CVE-2026-45476?
It affects 1 product.
Products include Microsoft Azure Network Adapter.
How do I fix CVE-2026-45476?
No fix has been published for CVE-2026-45476 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2026-45476 being exploited?
There is no known exploitation of CVE-2026-45476 in the wild and no public exploit code.
Sources
Also known as GHSA-w6wg-wvpc-5gj5.