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 4.0

1.8CVSS: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

CVSS 3.1

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

EPSS

0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-25)

CWEs

CWE-664, CWE-911

Published

2026-08-10

Modified

2026-10-23

Record from

the NVD, synced 2026-10-24

References

• https://drive.google.com/file/d/1LN68wxIx_2EI4IBVq13UlP4G1aqyz--x/view?usp=sharing
• https://vuldb.com/cve/CVE-2026-19380
• https://vuldb.com/submit/866726
• https://vuldb.com/vuln/387273
• https://vuldb.com/vuln/387273/cti

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