A vulnerability was identified in Mullvad wireguard.sys 0.10.1. (CVE-2026-19380)
A low-severity vulnerability (CVE-2026-19380) exists in Mullvad wireguard.sys version 0.10.1, specifically in the AdapterState function of the IOCTL Handler component. This flaw involves improper update of a reference count due to manipulation. Exploitation requires local access with high privileges. No confidentiality or integrity impact is noted, only a potential availability impact. Public exploit code is available, but no known exploitation in the wild has been reported. No patch or remediation information is currently provided by the vendor.
AI Analysis
Technical Summary
CVE-2026-19380 is a vulnerability in Mullvad wireguard.sys 0.10.1 affecting the AdapterState function within the IOCTL Handler component. The vulnerability causes improper update of a reference count, which can lead to a denial of service or system instability. Exploitation requires local access with high privileges. The vulnerability has a CVSS 3.1 base score of 2.3, indicating low severity, with no impact on confidentiality or integrity, only availability. Public exploit code exists, but no active exploitation is known. The vendor was notified early, but no patch or official remediation details are available at this time.
Potential Impact
The vulnerability allows an attacker with local high privileges to manipulate the AdapterState function, causing improper reference count updates that may result in denial of service or system instability. There is no impact on confidentiality or integrity. The overall severity is low.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict local access to trusted users only and monitor for suspicious activity related to wireguard.sys. No official fix or temporary workaround has been published by the vendor.
A vulnerability was identified in Mullvad wireguard.sys 0.10.1. (CVE-2026-19380)
Description
A low-severity vulnerability (CVE-2026-19380) exists in Mullvad wireguard.sys version 0.10.1, specifically in the AdapterState function of the IOCTL Handler component. This flaw involves improper update of a reference count due to manipulation. Exploitation requires local access with high privileges. No confidentiality or integrity impact is noted, only a potential availability impact. Public exploit code is available, but no known exploitation in the wild has been reported. No patch or remediation information is currently provided by the vendor.
CVSS v3.1
Score 2.3low
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-19380 is a vulnerability in Mullvad wireguard.sys 0.10.1 affecting the AdapterState function within the IOCTL Handler component. The vulnerability causes improper update of a reference count, which can lead to a denial of service or system instability. Exploitation requires local access with high privileges. The vulnerability has a CVSS 3.1 base score of 2.3, indicating low severity, with no impact on confidentiality or integrity, only availability. Public exploit code exists, but no active exploitation is known. The vendor was notified early, but no patch or official remediation details are available at this time.
Potential Impact
The vulnerability allows an attacker with local high privileges to manipulate the AdapterState function, causing improper reference count updates that may result in denial of service or system instability. There is no impact on confidentiality or integrity. The overall severity is low.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a patch is available, restrict local access to trusted users only and monitor for suspicious activity related to wireguard.sys. No official fix or temporary workaround has been published by the vendor.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-vfrx-fwf3-jfq2
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-19380"]
- Ecosystems
- []
- Database Specific Severity
- LOW
- Cvss Version
- 3.1
Threat ID: 6a79f0efbf8831d539f63c44
Added to database: 08/10/2026, 15:40:31 UTC
Last enriched: 08/10/2026, 16:08:04 UTC
Last updated: 08/11/2026, 03:40:59 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.