CVE-2026-85879
HighCVSS 7.0Summary
Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
Risk Assessment
An attacker could exploit a timing window to elevate privileges, potentially leading to unauthorized access to resources.
Recommendation
Install security updates and consider restricting access to WSL.
Other vulnerabilities in Windows Subsystem for Linux
See all- CVE-2026-96309High
Use-after-free vulnerability in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
- CVE-2017-8622High
The vulnerability in Windows Subsystem for Linux in Windows 10 1703 allows for elevation of privilege when it fails to properly handle NT pipes handles.
- CVE-2026-57973Medium
A TOCTOU race condition in Windows Subsystem for Linux (WSL) allows an authorized attacker to perform local tampering. The vulnerability stems from a race between resource check and use.
- CVE-2026-57968High
A buffer over-read vulnerability in Windows Subsystem for Linux (WSL) allows an authorized attacker to elevate privileges locally.
- CVE-2021-36966High
Vulnerability in Windows Subsystem for Linux allows elevation of privilege. An attacker could exploit this flaw to gain higher privileges on the system.
- CVE-2020-1075Medium
Information disclosure vulnerability in Windows Subsystem for Linux due to improper handling of objects in memory. An attacker could obtain information to further compromise the user's system.
Original NVD description (English source)
Time-of-check time-of-use (toctou) race condition in Windows Subsystem for Linux allows an authorized attacker to elevate privileges locally.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS