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CWE-367

696 CVEs • Abstraction: Base • Likelihood of Exploit: Medium

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. This can cause the product to perform invalid actions when the resource is in an unexpected state.

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CVEs (696)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Qualcomm
41Apq8009 Firmware
Apq8017 FirmwareApq8053 Firmware+38 more
Jun 17, 2026
Dec 12, 2019
N/A· v4
8.1 HIGH· v3
4.4 MEDIUM· v2
Race condition between the camera functions due to lack of resource lock which will lead to memory corruption and UAF issue in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapd...Show more
Race condition between the camera functions due to lack of resource lock which will lead to memory corruption and UAF issue in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in APQ8009, APQ8017, APQ8053, APQ8096AU, APQ8098, MDM9206, MDM9207C, MDM9607, MDM9640, MDM9650, MSM8909, MSM8909W, MSM8917, MSM8920, MSM8937, MSM8940, MSM8953, MSM8996AU, MSM8998, Nicobar, QCN7605, QCS405, QCS605, QM215, SDA660, SDA845, SDM429, SDM439, SDM450, SDM630, SDM632, SDM636, SDM660, SDM670, SDM710, SDM845, SDX20, SDX24, SM6150, SM7150, SM8150Show less
3Debian
FedoraprojectRedhat
4Debian Linux
Enterprise LinuxFedora+1 more
Nov 21, 2024
Dec 3, 2019
N/A· v4
4.7 MEDIUM· v3
3.3 LOW· v2
shadow: TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees
3Fedoraproject
Libuser ProjectRedhat
3Enterprise Linux
FedoraLibuser
Nov 21, 2024
Nov 25, 2019
N/A· v4
6.3 MEDIUM· v3
3.3 LOW· v2
libuser 0.56 and 0.57 has a TOCTOU (time-of-check time-of-use) race condition when copying and removing directory trees.
4Debian
FedoraprojectRedhat+1 more
4Debian Linux
Enterprise LinuxFedora+1 more
Nov 21, 2024
Nov 22, 2019
N/A· v4
4.7 MEDIUM· v3
3.3 LOW· v2
libbluray MountManager class has a time-of-check time-of-use (TOCTOU) race when expanding JAR files
1Qualcomm
36Apq8009 Firmware
Apq8017 FirmwareApq8053 Firmware+33 more
Jun 17, 2026
Nov 21, 2019
N/A· v4
7.0 HIGH· v3
4.4 MEDIUM· v2
Race condition due to the lack of resource lock which will be concurrently modified in the memcpy statement leads to out of bound access in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consum...Show more
Race condition due to the lack of resource lock which will be concurrently modified in the memcpy statement leads to out of bound access in Snapdragon Auto, Snapdragon Consumer Electronics Connectivity, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon IoT, Snapdragon Mobile, Snapdragon Voice & Music, Snapdragon Wearables in APQ8009, APQ8017, APQ8053, APQ8096AU, APQ8098, MDM9206, MDM9207C, MDM9607, MDM9640, MDM9650, MSM8905, MSM8909W, MSM8939, MSM8953, MSM8996AU, MSM8998, Nicobar, QCN7605, QCS405, QCS605, QM215, SDA660, SDA845, SDM429, SDM439, SDM630, SDM632, SDM636, SDM660, SDM710, SDM845, SDX20, SDX24, SM6150, SM7150, SM8150Show less
1Microsoft
6Windows 10
Windows 8.1Windows Rt 8.1+3 more
Jun 17, 2026
Nov 12, 2019
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
A local elevation of privilege vulnerability exists in how splwow64.exe handles certain calls, aka 'Microsoft splwow64 Elevation of Privilege Vulnerability'.
1Totaldefense
1Anti Virus
Jun 17, 2026
Oct 31, 2019
N/A· v4
5.9 MEDIUM· v3
5.8 MEDIUM· v2
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.
1Eclipse
1Omr
Jun 17, 2026
Sep 12, 2019
N/A· v4
7.4 HIGH· v3
5.8 MEDIUM· v2
Prior to 0.1, all builds of Eclipse OMR contain a bug where the loop versioner may fail to privatize a value that is pulled out of the loop by versioning - for example if there is a condition that is moved out of the loo...Show more
Prior to 0.1, all builds of Eclipse OMR contain a bug where the loop versioner may fail to privatize a value that is pulled out of the loop by versioning - for example if there is a condition that is moved out of the loop that reads a field we may not privatize the value of that field in the modified copy of the loop allowing the test to see one value of the field and subsequently the loop to see a modified field value without retesting the condition moved out of the loop. This can lead to a variety of different issues but read out of array bounds is one major consequence of these problems.Show less
1Apport Project
1Apport
Jun 17, 2026
Aug 29, 2019
N/A· v4
7.0 HIGH· v3
4.4 MEDIUM· v2
Apport before versions 2.14.1-0ubuntu3.29+esm1, 2.20.1-0ubuntu2.19, 2.20.9-0ubuntu7.7, 2.20.10-0ubuntu27.1, 2.20.11-0ubuntu5 contained a TOCTTOU vulnerability when reading the users ~/.apport-ignore.xml file, which allow...Show more
Apport before versions 2.14.1-0ubuntu3.29+esm1, 2.20.1-0ubuntu2.19, 2.20.9-0ubuntu7.7, 2.20.10-0ubuntu27.1, 2.20.11-0ubuntu5 contained a TOCTTOU vulnerability when reading the users ~/.apport-ignore.xml file, which allows a local attacker to replace this file with a symlink to any other file on the system and so cause Apport to include the contents of this other file in the resulting crash report. The crash report could then be read by that user either by causing it to be uploaded and reported to Launchpad, or by leveraging some other vulnerability to read the resulting crash report, and so allow the user to read arbitrary files on the system.Show less
1Valvesoftware
1Steam Client
Jun 17, 2026
Aug 21, 2019
N/A· v4
7.0 HIGH· v3
6.9 MEDIUM· v2
Valve Steam Client for Windows through 2019-08-20 has weak folder permissions, leading to privilege escalation (to NT AUTHORITY\SYSTEM) via crafted use of CreateMountPoint.exe and SetOpLock.exe to leverage a TOCTOU race...Show more
Valve Steam Client for Windows through 2019-08-20 has weak folder permissions, leading to privilege escalation (to NT AUTHORITY\SYSTEM) via crafted use of CreateMountPoint.exe and SetOpLock.exe to leverage a TOCTOU race condition.Show less
2Eclipse
Redhat
5Enterprise Linux Desktop
Enterprise Linux ServerEnterprise Linux Workstation+2 more
Jun 17, 2026
Jul 30, 2019
N/A· v4
7.4 HIGH· v3
5.8 MEDIUM· v2
All builds of Eclipse OpenJ9 prior to 0.15 contain a bug where the loop versioner may fail to privatize a value that is pulled out of the loop by versioning - for example if there is a condition that is moved out of the...Show more
All builds of Eclipse OpenJ9 prior to 0.15 contain a bug where the loop versioner may fail to privatize a value that is pulled out of the loop by versioning - for example if there is a condition that is moved out of the loop that reads a field we may not privatize the value of that field in the modified copy of the loop allowing the test to see one value of the field and subsequently the loop to see a modified field value without retesting the condition moved out of the loop. This can lead to a variety of different issues but read out of array bounds is one major consequence of these problems.Show less
1Microsoft
3Windows 10
Windows Server 2016Windows Server 2019
Jun 17, 2026
Jun 12, 2019
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An att...Show more
An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application to take control of an affected system. The update addresses the vulnerability by correcting how the Windows kernel handles objects in memory.Show less
3Ionos
StratoTelekom
31&1 Online Storage
Hidrive Desktop ClientMagentacloud
Jun 17, 2026
Apr 30, 2019
N/A· v4
8.8 HIGH· v3
9.0 HIGH· v2
STRATO HiDrive Desktop Client 5.0.1.0 for Windows suffers from a SYSTEM privilege escalation vulnerability through the HiDriveMaintenanceService service. This service establishes a NetNamedPipe endpoint that allows appli...Show more
STRATO HiDrive Desktop Client 5.0.1.0 for Windows suffers from a SYSTEM privilege escalation vulnerability through the HiDriveMaintenanceService service. This service establishes a NetNamedPipe endpoint that allows applications to connect and call publicly exposed methods. An attacker can inject and execute code by hijacking the insecure communications with the service. This vulnerability also affects Telekom MagentaCLOUD through 5.7.0.0 and 1&1 Online Storage through 6.1.0.0.Show less
1Microsoft
8Windows 10
Windows 7Windows 8.1+5 more
Jun 17, 2026
Apr 9, 2019
N/A· v4
7.8 HIGH· v3
4.6 MEDIUM· v2
An elevation of privilege vulnerability exists when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0730, CVE-2019...Show more
An elevation of privilege vulnerability exists when Windows improperly handles calls to the LUAFV driver (luafv.sys), aka 'Windows Elevation of Privilege Vulnerability'. This CVE ID is unique from CVE-2019-0730, CVE-2019-0731, CVE-2019-0796, CVE-2019-0805, CVE-2019-0841.Show less
1Plataformatec
1Devise
Jun 17, 2026
Apr 3, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
Plataformatec Devise version 4.5.0 and earlier, using the lockable module contains a CWE-367 vulnerability in The `Devise::Models::Lockable` class, more specifically at the `#increment_failed_attempts` method. File locat...Show more
Plataformatec Devise version 4.5.0 and earlier, using the lockable module contains a CWE-367 vulnerability in The `Devise::Models::Lockable` class, more specifically at the `#increment_failed_attempts` method. File location: lib/devise/models/lockable.rb that can result in Multiple concurrent requests can prevent an attacker from being blocked on brute force attacks. This attack appear to be exploitable via Network connectivity - brute force attacks. This vulnerability appears to have been fixed in 4.6.0 and later.Show less
1Vmware
3Esxi
FusionWorkstation
Jun 17, 2026
Apr 1, 2019
N/A· v4
6.8 MEDIUM· v3
7.2 HIGH· v2
VMware ESXi (6.7 before ESXi670-201903001, 6.5 before ESXi650-201903001, 6.0 before ESXi600-201903001), Workstation (15.x before 15.0.4, 14.x before 14.1.7), Fusion (11.x before 11.0.3, 10.x before 10.1.6) contain a Time...Show more
VMware ESXi (6.7 before ESXi670-201903001, 6.5 before ESXi650-201903001, 6.0 before ESXi600-201903001), Workstation (15.x before 15.0.4, 14.x before 14.1.7), Fusion (11.x before 11.0.3, 10.x before 10.1.6) contain a Time-of-check Time-of-use (TOCTOU) vulnerability in the virtual USB 1.1 UHCI (Universal Host Controller Interface). Exploitation of this issue requires an attacker to have access to a virtual machine with a virtual USB controller present. This issue may allow a guest to execute code on the host.Show less
1Zoneminder
1Zoneminder
Jun 17, 2026
Feb 4, 2019
N/A· v4
7.5 HIGH· v3
6.0 MEDIUM· v2
A Time-of-check Time-of-use (TOCTOU) Race Condition exists in ZoneMinder through 1.32.3 as a session remains active for an authenticated user even after deletion from the users table. This allows a nonexistent user to ac...Show more
A Time-of-check Time-of-use (TOCTOU) Race Condition exists in ZoneMinder through 1.32.3 as a session remains active for an authenticated user even after deletion from the users table. This allows a nonexistent user to access and modify records (add/delete Monitors, Users, etc.).Show less
1Keybase
1Keybase
Jun 17, 2026
Jan 31, 2019
N/A· v4
9.8 CRITICAL· v3
7.5 HIGH· v2
In Keybase before 2.12.6 on macOS, the move RPC to the Helper was susceptible to time-to-check-time-to-use bugs and would also allow one user of the system (who didn't have root access) to tamper with another's installs.
1Google
1Chrome
Nov 21, 2024
Jan 9, 2019
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
An ability to process crash dumps under root privileges and inappropriate symlinks handling could lead to a local privilege escalation in Crash Reporting in Google Chrome on Chrome OS prior to 61.0.3163.113 allowed a loc...Show more
An ability to process crash dumps under root privileges and inappropriate symlinks handling could lead to a local privilege escalation in Crash Reporting in Google Chrome on Chrome OS prior to 61.0.3163.113 allowed a local attacker to perform privilege escalation via a crafted HTML page.Show less
5Canonical
DebianFedoraproject+2 more
5Debian Linux
FedoraLeap+2 more
Nov 21, 2024
Dec 13, 2018
N/A· v4
5.3 MEDIUM· v3
3.5 LOW· v2
A flaw was found in qemu Media Transfer Protocol (MTP). The code opening files in usb_mtp_get_object and usb_mtp_get_partial_object and directories in usb_mtp_object_readdir doesn't consider that the underlying filesyste...Show more
A flaw was found in qemu Media Transfer Protocol (MTP). The code opening files in usb_mtp_get_object and usb_mtp_get_partial_object and directories in usb_mtp_object_readdir doesn't consider that the underlying filesystem may have changed since the time lstat(2) was called in usb_mtp_object_alloc, a classical TOCTTOU problem. An attacker with write access to the host filesystem shared with a guest can use this property to navigate the host filesystem in the context of the QEMU process and read any file the QEMU process has access to. Access to the filesystem may be local or via a network share protocol such as CIFS.Show less