CVE-2026-19380

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 v4.0

1.8 LOWCVSS: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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1

2.3 LOWCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

CVSS v2.0

1.4 LOWAV:L/AC:L/Au:M/C:N/I:N/A:P

EPSS

0.12% chance of exploitation in the next 30 days, 2th percentile

Published

2026-08-10

Proof-of-concept exploits (1)

• https://drive.google.com/file/d/1LN68wxIx_2EI4IBVq13UlP4G1aqyz--x/view?usp=sharing

References

• CVE Record
• NVD entry

Related

• CVE-2026-19379
• CVE-2026-19381
• CVE-2026-19378
• CVE-2026-19382
• CVE-2026-19376
• CVE-2026-19383