Mullvad wireguard.sys 0.10.1 IOCTL AdapterState reference count

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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2.1$0-$5k1.86+

Summaryinfo

A vulnerability was found in Mullvad wireguard.sys 0.10.1. It has been classified as problematic. The impacted element is the function AdapterState of the component IOCTL Handler. Performing a manipulation results in reference count. This vulnerability was named CVE-2026-19380. The attack needs to be approached locally. In addition, an exploit is available. The vendor was contacted early about this disclosure.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Mullvad wireguard.sys 0.10.1. This affects the function AdapterState of the component IOCTL Handler. The manipulation with an unknown input leads to a reference count vulnerability. CWE is classifying the issue as CWE-911. The product uses a reference count to manage a resource, but it does not update or incorrectly updates the reference count. This is going to have an impact on availability.

The advisory is shared at drive.google.com. This vulnerability is uniquely identified as CVE-2026-19380. The exploitability is told to be easy. An attack has to be approached locally. Additional levels of successful authentication are necessary for exploitation. Technical details and a public exploit are known.

The exploit is shared for download at drive.google.com. It is declared as proof-of-concept. The vendor was contacted early about this disclosure.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.3
VulDB Meta Temp Score: 2.1

VulDB Base Score: 2.3
VulDB Temp Score: 2.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Reference count
CWE: CWE-911 / CWE-664
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Access: Public
Status: Proof-of-Concept
Download: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

08/09/2026 Advisory disclosed
08/09/2026 +0 days VulDB entry created
08/09/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: drive.google.com
Status: Not defined

CVE: CVE-2026-19380 (🔒)
GCVE (CVE): GCVE-0-2026-19380
GCVE (VulDB): GCVE-100-387273
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 08/09/2026 17:18
Changes: 08/09/2026 17:18 (56)
Complete: 🔍
Submitter: Raulisr00t
Cache ID: 216::103

Submitinfo

Accepted

  • Submit #866726: Mullvad wireguard.sys 0.10.1 Denial of Service (by Raulisr00t)

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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