Description
A vulnerability was identified in Mullvad wireguard.sys 0.10.1. The affected element is the function AdapterState of the component IOCTL Handler. Such manipulation leads to improper update of reference count. Local access is required to approach this attack. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Mullvad | wireguard.sys | 0.10.1 | — |
References
- VDB-387273 | Mullvad wireguard.sys IOCTL AdapterState reference count vdb-entry technical-description
- VDB-387273 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- CVE-2026-19380 | CVE Analysis and Report third-party-advisory
- Submit #866726 | Mullvad wireguard.sys 0.10.1 Denial of Service third-party-advisory
- https://drive.google.com/file/d/1LN68wxIx_2EI4IBVq13UlP4G1aqyz--x/view?usp=sharing exploit