CVE-2026-19380

Severity CVSS v4.0:

LOW

Type:

Unavailable / Other

Publication date:

10/08/2026

Last modified:

12/08/2026

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.

Impact

Vector 4.0

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 CVSS v4.0 Severity and Metrics:

Base Score: 1.80 LOW
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

Attack Vector (AV): Local
Attack Complexity (AC): Low
Attack Requirements (AT): None
Privileges Required (PR): High
User Interaction (UI): None
Confidentiality (VC): None
Integrity (VI): None
Availability (VA): Low
Confidentiality (SC): None
Integrity (SI): None
Availability (SA): None
Exploit Maturity (E): POC

Base Score 4.0

1.80

Severity 4.0

LOW

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L CVSS v3.1 Severity and Metrics:

Base Score: 2.30 LOW
Vector: CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:L

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): High
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): Low

Base Score 3.x

2.30

Severity 3.x

LOW

Vector 2.0

AV:L/AC:L/Au:M/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 1.40 LOW
Vector: AV:L/AC:L/Au:M/C:N/I:N/A:P

Attack Vector (AV): Local
Attack Complexity (AC): Low
Authentication (Au): Multiple
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0

1.40

Severity 2.0

LOW

CVE-2026-19380

Description

Impact

References to Advisories, Solutions, and Tools