CWE-367— Time-of-check Time-of-use (TOCTOU) Race Condition
The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check.— MITRE CWE catalog
1,006 active CVEs classified under this weakness category. Sourced from NVD, GHSA, and vendor advisories. Full definition on MITRE →
CVEs classified under CWE-367page 16 of 21
- CVE-2020-8890MEDIUMCVSS 5.9EG 5.92020-02-12
An issue was discovered in MISP before 2.4.121. It mishandled time skew (between the machine hosting the web server and the machine hosting the database) when trying to block a brute-force series of invalid requests.
- CVE-2019-20000MEDIUMCVSS 5.9EG 5.92019-12-26
The malware scan function in BullGuard Premium Protection 20.0.371.8 has a TOCTOU issue that enables a symbolic link attack, allowing privileged files to be deleted.
- CVE-2019-18644MEDIUMCVSS 5.9EG 5.92019-10-31
The malware scan function in Total Defense Anti-virus 11.5.2.28 is vulnerable to a TOCTOU bug; consequently, symbolic link attacks allow privileged files to be deleted.
- CVE-2018-1121MEDIUMCVSS 3.9EG 5.92018-06-13
procps-ng, procps is vulnerable to a process hiding through race condition. Since the kernel's proc_pid_readdir() returns PID entries in ascending numeric order, a process occupying a high PID can use inotify events to determine when the p…
- CVE-2026-93315MEDIUMCVSS 5.8EG 5.82026-10-05
When proxy networking with CA injection is enabled, a build can modify its CA bundle before cleanup. This may cause cleanup to block, operate outside the build rootfs, or fail without failing the build.
- CVE-2026-105743MEDIUMCVSS 5.8EG 5.82026-10-05
Docling simplifies document processing by parsing diverse formats and providing integrations with the generative AI ecosystem. From 2.91.0 until 2.132.0, validate_url_safety in docling/backend/utils/image_resource_loader.py validates a hos…
- CVE-2026-54576MEDIUMCVSS 5.8EG 5.82026-09-17
mport is the MidnightBSD Package Manager. Prior to 2.7.8, do_actual_install() in libmport/bundle_read_install_pkg.c used path-based lstat(), chown(), stat(), and chmod() operations while installing package files. A local attacker with writ…
- CVE-2026-54587MEDIUMCVSS 5.8EG 5.82026-09-17
mport is the MidnightBSD Package Manager. Prior to 2.7.8, directory assets handled as ASSET_DIR or ASSET_DIR_OWNER_MODE in libmport/bundle_read_install_pkg.c used path-based mport_mkdirp(), ownership, and permission operations. A local att…
- CVE-2026-54575MEDIUMCVSS 5.8EG 5.82026-09-17
mport is the MidnightBSD Package Manager. Prior to 2.7.8, privileged package fetch and cache-cleaning operations used race-prone path handling across libmport/fetch.c, libmport/clean.c, libmport/util.c, libmport/bundle_read_install_pkg.c, …
- CVE-2026-76925MEDIUMCVSS 5.8EG 5.82026-09-04
A flaw was found in Flatpak. A Time-of-check to time-of-use (TOCTOU) race condition exists in the `org.freedesktop.Flatpak.SystemHelper` component. This vulnerability occurs because a privileged `chmod` operation executes before the OSTree…
- CVE-2026-67433MEDIUMCVSS 5.8EG 5.82026-07-29
Linuxfabrik monitoring-plugins provides Python monitoring plugins for Icinga, Nagios, and related monitoring systems. In version 6.0.0, the logfile check legacy database migration moved a predictable path from /tmp with os.rename() and all…
- CVE-2026-59676MEDIUMCVSS 5.8EG 5.82026-07-23
A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in seunshare of selinux policycoreutils allows a user calling seunshare that is running in the unconfined SELinux domain to delete arbitrary root-owned files, This is…
- CVE-2026-15449MEDIUMCVSS 5.8EG 5.82026-07-16
A time-of-check to time-of-use (TOCTOU) flaw in the illumos data-link pseudo-driver (dld) affects handling of the DLDIOC_GETMACPROP and DLDIOC_SETMACPROP ioctls on /dev/dld. drv_ioc_prop_common() in usr/src/uts/common/io/dld/dld_drv.c copi…
- CVE-2026-48983MEDIUMCVSS 5.8EG 5.82026-06-18
pam_usb provides hardware authentication for Linux using ordinary removable media. In versions prior to 0.9.2, a symlink race condition exists in per-device and per-user pad directory creation. pam_usb uses a check-then-act pattern: it cal…
- CVE-2026-35376MEDIUMCVSS 5.8EG 5.82026-04-22
A Time-of-Check to Time-of-Use (TOCTOU) vulnerability exists in the chcon utility of uutils coreutils during recursive operations. The implementation resolves recursive targets using a fresh path lookup (via fts_accpath) rather than bindin…
- CVE-2026-25704MEDIUMCVSS 5.8EG 5.82026-03-30
A Privilege Dropping / Lowering Errors/Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in cosmic-greeter can allow an attacker to regain privileges that should have been dropped and abuse them in the racy checking logic. …
- CVE-2026-27189MEDIUMCVSS 5.8EG 5.82026-02-21
OpenSift is an AI study tool that sifts through large datasets using semantic search and generative AI. Versions 1.1.2-alpha and below, use non-atomic and insufficiently synchronized local JSON persistence flows, potentially causing concur…
- CVE-2025-9810MEDIUMCVSS 5.8EG 5.82025-09-01
TOCTOU in linenoiseHistorySave in linenoise allows local attackers to overwrite arbitrary files and change permissions via a symlink race between fopen("w") on the history path and subsequent chmod() on the same path.
- CVE-2020-3981MEDIUMCVSS 5.8EG 5.82020-10-20
VMware ESXi (7.0 before ESXi_7.0.1-0.0.16850804, 6.7 before ESXi670-202008101-SG, 6.5 before ESXi650-202007101-SG), Workstation (15.x), Fusion (11.x before 11.5.6) contain an out-of-bounds read vulnerability due to a time-of-check time-of-…
- CVE-2023-6803MEDIUMCVSS 4.0EG 5.82023-12-21
A race condition in GitHub Enterprise Server allows an outside collaborator to be added while a repository is being transferred. This vulnerability affected all versions of GitHub Enterprise Server since 3.8 and was fixed in version 3.8.12…
- CVE-2026-129092MEDIUMCVSS 5.7EG 5.72026-11-13
CCC Attestation SIG attested-tls-poc through commit 731ca82 contains a time-of-check time-of-use vulnerability because Evidence is appraised only once during the TLS handshake, without post-handshake re-attestation. Attackers with local ac…
- CVE-2026-49036MEDIUMCVSS 5.7EG 5.72026-11-10
Time-of-check time-of-use race condition in the MigTD shared memory for the Intel(R) TDX Migration Trust Domain (MigTD) within Ring 0: Hypervisor may allow a denial of service. System software adversary with a privileged user combined with…
- CVE-2026-5303MEDIUMCVSS 5.7EG 5.72026-08-11
The ACAP framework contains a Time-of-Check to Time-of-Use (TOCTOU) race condition, which could potentially lead to privilege escalation. This vulnerability can only be exploited if the Axis device is configured to allow the installation o…
- CVE-2026-11835MEDIUMCVSS 5.7EG 5.72026-08-04
Time-of-check time-of-use (TOCTOU) vulnerability combined with missing input validation in Caliptra Core ROM (UpdateResetFlow::run()) in subsystem mode allows a compromised local attacker to silently bypass secure boot by supplying an AXI …
- CVE-2023-20135MEDIUMCVSS 5.7EG 5.72023-09-13
A vulnerability in Cisco IOS XR Software image verification checks could allow an authenticated, local attacker to execute arbitrary code on the underlying operating system. This vulnerability is due to a time-of-check, time-of-use (TOC…
- CVE-2023-20523MEDIUMCVSS 5.7EG 5.72023-01-11
TOCTOU in the ASP may allow a physical attacker to write beyond the buffer bounds, potentially leading to a loss of integrity or denial of service.
- CVE-2023-20521MEDIUMCVSS 3.3EG 5.72023-11-14
TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading to loss of confidentiality or a denial of service.
- CVE-2026-79730MEDIUMCVSS 5.6EG 5.62026-09-09
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability. An unauthenticated attacker with remote access could…
- CVE-2025-22850MEDIUMCVSS 5.6EG 5.62026-03-10
Time-of-check time-of-use race condition in the UEFI PdaSmm module for some Intel(R) reference platforms may allow an information disclosure. System software adversary with a privileged user combined with a high complexity attack may enabl…
- CVE-2025-54271MEDIUMCVSS 5.6EG 5.62025-10-15
Creative Cloud Desktop versions 6.7.0.278 and earlier are affected by a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability that could lead to arbitrary file system write. A low-privileged attacker could exploit the timing betw…
- CVE-2025-42701MEDIUMCVSS 5.6EG 5.62025-10-08
A race condition exists in the Falcon sensor for Windows that could allow an attacker, with the prior ability to execute code on a host, to delete arbitrary files. CrowdStrike released a security fix for this issue in Falcon sensor for Win…
- CVE-2023-4155MEDIUMCVSS 5.6EG 5.62023-09-13
A flaw was found in KVM AMD Secure Encrypted Virtualization (SEV) in the Linux kernel. A KVM guest using SEV-ES or SEV-SNP with multiple vCPUs can trigger a double fetch race condition vulnerability and invoke the `VMGEXIT` handler recursi…
- CVE-2021-31427MEDIUMCVSS 5.6EG 5.62021-04-29
This vulnerability allows local attackers to disclose sensitive information on affected installations of Parallels Desktop 15.1.5-47309. An attacker must first obtain the ability to execute low-privileged code on the target guest system in…
- CVE-2020-8833MEDIUMCVSS 5.6EG 5.62020-04-22
Time-of-check Time-of-use Race Condition vulnerability on crash report ownership change in Apport allows for a possible privilege escalation opportunity. If fs.protected_symlinks is disabled, this can be exploited between the os.open and o…
- CVE-2026-101308MEDIUMCVSS 5.5EG 5.52026-10-15
When an audio channel's buffer needs to be resized, the sound(4) driver checks that the buffer is not memory-mapped and then drops the channel lock to allocate a new buffer. An mmap(2) call on another thread can complete during this windo…
- CVE-2026-70288MEDIUMCVSS 5.5EG 5.52026-10-13
Time-of-check time-of-use (toctou) race condition in Windows Win32 Kernel Subsystem allows an authorized attacker to disclose information locally.
- CVE-2026-20492MEDIUMCVSS 5.5EG 5.52026-08-03
In Audio HAL, there is a possible system becoming unresponsive due to a race condition. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS109600…
- CVE-2026-58198MEDIUMCVSS 5.5EG 5.52026-07-09
ChatterBot is a machine learning, conversational dialog engine for creating chat bots. Prior to 1.2.14, UbuntuCorpusTrainer.extract() uses a predictable home-rooted output directory (~/ubuntu_data/ubuntu_dialogs) with a check-then-create p…
- CVE-2025-46805MEDIUMCVSS 5.5EG 5.52025-05-26
Screen version 5.0.0 and older version 4 releases have a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-root.
- CVE-2025-21431MEDIUMCVSS 5.5EG 5.52025-04-07
Information disclosure may be there when a guest VM is connected.
- CVE-2024-2440MEDIUMCVSS 5.5EG 5.52024-04-19
A race condition in GitHub Enterprise Server allowed an existing admin to maintain permissions on a detached repository by making a GraphQL mutation to alter repository permissions while the repository is detached. This vulnerability affe…
- CVE-2024-21362MEDIUMCVSS 5.5EG 5.52024-02-13
Windows Kernel Security Feature Bypass Vulnerability
- CVE-2026-21912MEDIUMCVSS 4.7EG 5.52026-01-15
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 fi…
- CVE-2025-21746MEDIUMCVSS 4.7EG 5.52025-02-27
In the Linux kernel, the following vulnerability has been resolved: Input: synaptics - fix crash when enabling pass-through port When enabling a pass-through port an interrupt might come before psmouse driver binds to the pass-through po…
- CVE-2026-114594MEDIUMCVSS 5.4EG 5.42026-11-09
A time-of-check to time-of-use (TOCTOU) race condition in the Sandisk Dashboard installer allows a local, authenticated standard user to replace an installer-staged binary in a user-writable temporary directory between validation and execu…
- CVE-2026-75524MEDIUMCVSS 5.4EG 5.42026-10-23
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 2.2.2, an attacker overbooks an agent, placing multiple appointments into a single time slot that the system is de…
- CVE-2026-3428MEDIUMCVSS 5.4EG 5.42026-04-16
A Download of Code Without Integrity Check vulnerability in the update modules in ASUS Member Center(华硕大厅) allows a local user to achieve privilege escalation to Administrator via exploitation of a Time-of-check Time-of-use (TOC-TO…
- CVE-2026-1880MEDIUMCVSS 5.4EG 5.42026-04-16
An Incorrect Permission Assignment for Critical Resource vulnerability in the ASUS DriverHub update process allows privilege escalation due to improper protection of required execution resources during the validation phase, permitting a lo…
- CVE-2026-124622MEDIUMCVSS 5.3EG 5.32026-11-09
A vulnerability was identified in olivier-ls PHP-FTS up to 1.1.3. This impacts the function TrigramIndex::open of the file Storage.php. Such manipulation leads to time-of-check time-of-use. The attack needs to be performed locally. Upgradi…
- CVE-2026-123486MEDIUMCVSS 5.3EG 5.32026-11-06
WWBN AVideo 29.0 through 29.4.0 contains a race condition vulnerability in plugin/PayPalYPT/ipn.php that allows attackers to bypass IPN replay protection due to a non-atomic deduplication check and insert. Attackers can concurrently replay…
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