CVE-2026-19380

Mullvad wireguard.sys IOCTL AdapterState reference count

Published Aug 10, 2026 CVSS 4.0 · 4.6 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title Mullvad wireguard.sys IOCTL AdapterState reference count
First Time appeared Mullvad
Mullvad wireguard.sys
Weaknesses CWE-664
CWE-911
CPEs cpe:2.3:a:mullvad:wireguard.sys:*:*:*:*:*:*:*:*
Vendors & Products Mullvad
Mullvad wireguard.sys
References
Metrics cvssV2_0

{'score': 1.4, 'vector': 'AV:L/AC:L/Au:M/C:N/I:N/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 2.3, 'vector': 'CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 2.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 4.6, 'vector': '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulDB
Published
Updated
Aug 10, 2026, 9:11 PM
Reserved
Aug 9, 2026, 3:13 PM
Status
Deferred
Published
Aug 10, 2026, 1:16 AM
Modified
Oct 23, 2026, 8:10 PM