GHSA-597G-3PHW-6986 virtualenv Has TOCTOU Vulnerabilities in Directory Creation

Impact TOCTOU Time-of-Check-Time-of-Use vulnerabilities in virtualenv allow local attackers to perform symlink-based attacks on directory creation operations. An attacker with local access can exploit a race condition between directory existence checks and creation to redirect virtualenv's appdat...

EUVD-2026-1870

filelock Time-of-Check-Time-of-Use TOCTOU Symlink Vulnerability in SoftFileLock...

GHSA-QMGC-5H2G-MVRW filelock Time-of-Check-Time-of-Use (TOCTOU) Symlink Vulnerability in SoftFileLock

Vulnerability Summary Title: Time-of-Check-Time-of-Use TOCTOU Symlink Vulnerability in SoftFileLock Affected Component: filelock package - SoftFileLock class File: src/filelock/soft.py lines 17-27 CWE: CWE-362, CWE-367, CWE-59 --- Description A TOCTOU race condition vulnerability exists in the...

CVE-2026-20831

Time-of-check time-of-use toctou race condition in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally...

CVE-2026-20831

Time-of-check time-of-use toctou race condition in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally...

CVE-2026-20809

Time-of-check time-of-use toctou race condition in Windows Kernel Memory allows an authorized attacker to elevate privileges locally...

CVE-2026-20809

Time-of-check time-of-use toctou race condition in Windows Kernel Memory allows an authorized attacker to elevate privileges locally...

CVE-2026-20831

Time-of-check time-of-use toctou race condition in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally...

CVE-2026-20816

CVE-2026-20816 is a Windows Installer time-of-check/time-of-use (TOCTOU) race condition that can allow a local user with low privileges to escalate to higher privileges. The connected Nessus entries flag this as affecting Windows Installer and describe the vulnerability as a local privilege escal...

CVE-2026-20809

Time-of-check time-of-use toctou race condition in Windows Kernel Memory allows an authorized attacker to elevate privileges locally...

Windows Ancillary Function Driver for WinSock Elevation of Privilege Vulnerability

Time-of-check time-of-use toctou race condition in Windows Ancillary Function Driver for WinSock allows an authorized attacker to elevate privileges locally...

Windows Installer Elevation of Privilege Vulnerability

Time-of-check time-of-use toctou race condition in Windows Installer allows an authorized attacker to elevate privileges locally...

Windows Kernel Memory Elevation of Privilege Vulnerability

Time-of-check time-of-use toctou race condition in Windows Kernel Memory allows an authorized attacker to elevate privileges locally...

CVE-2025-68789

The CVE-2025-68789 entry describes a Linux kernel hwmon driver issue (ibmpex) in the high/low store callback. The problem is a race condition: ibmpex_high_low_store() retrieves driver data with dev_get_drvdata() and uses it without validation, allowing a use-after-free if the data structure has b...

filelock Time-of-Check-Time-of-Use (TOCTOU) Symlink Vulnerability in SoftFileLock

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virtualenv Has TOCTOU Vulnerabilities in Directory Creation

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BIT-VIRTUALENV-2026-22702 virtualenv Has TOCTOU Vulnerabilities in Directory Creation

virtualenv is a tool for creating isolated virtual python environments. Prior to version 20.36.1, TOCTOU Time-of-Check-Time-of-Use vulnerabilities in virtualenv allow local attackers to perform symlink-based attacks on directory creation operations. An attacker with local access can exploit a rac...

PT-2026-2660

Name of the Vulnerable Software and Affected Versions Windows Kernel affected versions not specified Description A time-of-check time-of-use TOCTOU race condition exists within the Windows Kernel Memory. This condition can be exploited by an authorized attacker to gain elevated privileges on a...

PT-2026-2681

Name of the Vulnerable Software and Affected Versions Windows Ancillary Function Driver for WinSock affected versions not specified Description A time-of-check time-of-use TOCTOU race condition exists in the Windows Ancillary Function Driver for WinSock. This condition allows a locally authorized...

PT-2026-2666

Name of the Vulnerable Software and Affected Versions Windows Installer affected versions not specified Description A time-of-check time-of-use TOCTOU race condition exists in Windows Installer. This condition can be exploited by an authorized attacker to gain elevated privileges locally. The iss...