EUVD-2026-2682

A Time-of-check Time-of-use TOCTOU Race Condition vulnerability in the method to collect FPC Ethernet firmware statistics of Juniper Networks Junos OS on MX10k Series allows a local, low-privileged attacker executing the 'show system firmware' CLI command to cause an LC480 or LC2101 line card to...

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-2025-71111

In the Linux kernel, the following vulnerability has been resolved: hwmon: w83791d Convert macros to functions to avoid TOCTOU The macro FANFROMREG evaluates its arguments multiple times. When used in lockless contexts involving shared driver data, this leads to Time-of-Check to Time-of-Use TOCTO...

CVE-2025-71111 hwmon: (w83791d) Convert macros to functions to avoid TOCTOU

In the Linux kernel, the following vulnerability has been resolved: hwmon: w83791d Convert macros to functions to avoid TOCTOU The macro FANFROMREG evaluates its arguments multiple times. When used in lockless contexts involving shared driver data, this leads to Time-of-Check to Time-of-Use TOCTO...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: kernel (UTSA-2026-001672)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-001672 advisory. A time-of-check to time-of-use issue exists in iouring subsystem's IORINGOPCLOSE operation in the Linux kernel's versions 5.6 - 5.11 inclusive, which allows a local...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a macro's multiple evaluations leading to a TOCTOU contention condition, which could lead to a divide-by-zer...

Outray cli is vulnerable to race conditions in tunnels creation

Summary A TOCTOU race condition vulnerability allows a user to exceed the set number of active tunnels in their subscription plan. Details Affected conponent: apps/web/src/routes/api/tunnel/register.ts - /tunnel/register endpoint code-: ts // Check if tunnel already exists in database const...

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...

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...