CVE-2026-19380: medium-severity vulnerability in Mullvad wireguard.sys
Mullvad wireguard.sys IOCTL AdapterState reference count
Published
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33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 4.6epss 0.2%
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.
CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
Mullvad · wireguard.syspublic PoCs found — 1
cve_referencedrive.google.com/file/d/1LN68wxIx_2EI4IBVq13UlP4G1aqyz--x/view?usp=sharingunverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.