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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
1Paloaltonetworks
1Globalprotect
Jun 17, 2026
Jun 10, 2020
N/A· v4
7.0 HIGH· v3
6.9 MEDIUM· v2
A race condition vulnerability Palo Alto Networks GlobalProtect app on Windows allows a local limited Windows user to execute programs with SYSTEM privileges. This issue can be exploited only while performing a GlobalPro...Show more
A race condition vulnerability Palo Alto Networks GlobalProtect app on Windows allows a local limited Windows user to execute programs with SYSTEM privileges. This issue can be exploited only while performing a GlobalProtect app upgrade. This issue affects: GlobalProtect app 5.0 versions earlier than GlobalProtect app 5.0.10 on Windows; GlobalProtect app 5.1 versions earlier than GlobalProtect app 5.1.4 on Windows.Show less
1Qualcomm
18Apq8009 Firmware
Apq8053 FirmwareMsm8909w Firmware+15 more
Jun 17, 2026
Jun 2, 2020
N/A· v4
7.0 HIGH· v3
6.9 MEDIUM· v2
A race condition can occur when using the fastrpc memory mapping API. in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables in APQ8009, APQ805...Show more
A race condition can occur when using the fastrpc memory mapping API. in Snapdragon Auto, Snapdragon Compute, Snapdragon Consumer IOT, Snapdragon Industrial IOT, Snapdragon Mobile, Snapdragon Wearables in APQ8009, APQ8053, MSM8909W, MSM8917, MSM8953, QCS605, QM215, SA415M, SDM429, SDM429W, SDM439, SDM450, SDM632, SDM670, SDM710, SDM845, SDX24, SXR1130Show less
1Vmware
3Fusion
Horizon ClientRemote Console
Jun 17, 2026
May 29, 2020
N/A· v4
7.0 HIGH· v3
6.9 MEDIUM· v2
VMware Fusion (11.x before 11.5.5), VMware Remote Console for Mac (11.x and prior) and VMware Horizon Client for Mac (5.x and prior) contain a local privilege escalation vulnerability due to a Time-of-check Time-of-use (...Show more
VMware Fusion (11.x before 11.5.5), VMware Remote Console for Mac (11.x and prior) and VMware Horizon Client for Mac (5.x and prior) contain a local privilege escalation vulnerability due to a Time-of-check Time-of-use (TOCTOU) issue in the service opener. Successful exploitation of this issue may allow attackers with normal user privileges to escalate their privileges to root on the system where Fusion, VMRC and Horizon Client are installed.Show less
2Apport Project
Canonical
2Apport
Ubuntu Linux
Jun 17, 2026
Apr 22, 2020
N/A· v4
4.7 MEDIUM· v3
1.9 LOW· v2
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 betwee...Show more
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 os.chown calls when the Apport cron script clears out crash files of size 0. A symlink with the same name as the deleted file can then be created upon which chown will be called, changing the file owner to root. Fixed in versions 2.20.1-0ubuntu2.23, 2.20.9-0ubuntu7.14, 2.20.11-0ubuntu8.8 and 2.20.11-0ubuntu22.Show less
1Opcfoundation
1Unified Architecture .net Standard
Jun 17, 2026
Apr 22, 2020
N/A· v4
7.5 HIGH· v3
5.0 MEDIUM· v2
This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard 1.04.358.30. Authentication is not required to exploit this vulnerability. T...Show more
This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of OPC Foundation UA .NET Standard 1.04.358.30. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of sessions. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to create a denial-of-service condition against the application. Was ZDI-CAN-10295.Show less
1Juniper
1Junos
Jun 17, 2026
Apr 8, 2020
N/A· v4
5.5 MEDIUM· v3
2.1 LOW· v2
A privilege escalation vulnerability in Juniper Networks Junos OS devices configured with dual Routing Engines (RE), Virtual Chassis (VC) or high-availability cluster may allow a local authenticated low-privileged user w...Show more
A privilege escalation vulnerability in Juniper Networks Junos OS devices configured with dual Routing Engines (RE), Virtual Chassis (VC) or high-availability cluster may allow a local authenticated low-privileged user with access to the shell to perform unauthorized configuration modification. This issue does not affect Junos OS device with single RE or stand-alone configuration. This issue affects Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S14; 12.3X48 versions prior to 12.3X48-D86, 12.3X48-D90; 14.1X53 versions prior to 14.1X53-D51; 15.1 versions prior to 15.1R7-S6; 15.1X49 versions prior to 15.1X49-D181, 15.1X49-D190; 15.1X53 versions prior to 15.1X53-D592; 16.1 versions prior to 16.1R4-S13, 16.1R7-S6; 16.2 versions prior to 16.2R2-S10; 17.1 versions prior to 17.1R2-S11, 17.1R3-S1; 17.2 versions prior to 17.2R1-S9, 17.2R3-S3; 17.3 versions prior to 17.3R3-S6; 17.4 versions prior to 17.4R2-S6, 17.4R3; 18.1 versions prior to 18.1R3-S7; 18.2 versions prior to 18.2R2-S5, 18.2R3-S1; 18.2 versions prior to 18.2X75-D12, 18.2X75-D33, 18.2X75-D420, 18.2X75-D60, 18.2X75-D411; 18.3 versions prior to 18.3R1-S5, 18.3R2-S1, 18.3R3; 18.4 versions prior to 18.4R1-S4, 18.4R2-S1, 18.4R3; 19.1 versions prior to 19.1R1-S2, 19.1R2; 19.2 versions prior to 19.2R1-S1, 19.2R2.Show less
1Opensuse
2Leap
Texlive Filesystem
Jun 17, 2026
Apr 2, 2020
N/A· v4
6.3 MEDIUM· v3
3.3 LOW· v2
A Race Condition Enabling Link Following vulnerability in the cron job shipped with texlive-filesystem of SUSE Linux Enterprise Module for Desktop Applications 15-SP1, SUSE Linux Enterprise Software Development Kit 12-SP...Show more
A Race Condition Enabling Link Following vulnerability in the cron job shipped with texlive-filesystem of SUSE Linux Enterprise Module for Desktop Applications 15-SP1, SUSE Linux Enterprise Software Development Kit 12-SP4, SUSE Linux Enterprise Software Development Kit 12-SP5; openSUSE Leap 15.1 allows local users in group mktex to delete arbitrary files on the system This issue affects: SUSE Linux Enterprise Module for Desktop Applications 15-SP1 texlive-filesystem versions prior to 2017.135-9.5.1. SUSE Linux Enterprise Software Development Kit 12-SP4 texlive-filesystem versions prior to 2013.74-16.5.1. SUSE Linux Enterprise Software Development Kit 12-SP5 texlive-filesystem versions prior to 2013.74-16.5.1. openSUSE Leap 15.1 texlive-filesystem versions prior to 2017.135-lp151.8.3.1.Show less
1Opensuse
1Texlive Filesystem
Jun 17, 2026
Apr 2, 2020
N/A· v4
7.0 HIGH· v3
4.4 MEDIUM· v2
A Race Condition Enabling Link Following vulnerability in the packaging of texlive-filesystem of SUSE Linux Enterprise Module for Desktop Applications 15-SP1, SUSE Linux Enterprise Software Development Kit 12-SP4, SUSE L...Show more
A Race Condition Enabling Link Following vulnerability in the packaging of texlive-filesystem of SUSE Linux Enterprise Module for Desktop Applications 15-SP1, SUSE Linux Enterprise Software Development Kit 12-SP4, SUSE Linux Enterprise Software Development Kit 12-SP5; openSUSE Leap 15.1 allows local users to corrupt files or potentially escalate privileges. This issue affects: SUSE Linux Enterprise Module for Desktop Applications 15-SP1 texlive-filesystem versions prior to 2017.135-9.5.1. SUSE Linux Enterprise Software Development Kit 12-SP4 texlive-filesystem versions prior to 2013.74-16.5.1. SUSE Linux Enterprise Software Development Kit 12-SP5 texlive-filesystem versions prior to 2013.74-16.5.1. openSUSE Leap 15.1 texlive-filesystem versions prior to 2017.135-lp151.8.3.1.Show less
1Adobe
1Creative Cloud
Jun 17, 2026
Mar 25, 2020
N/A· v4
5.9 MEDIUM· v3
5.8 MEDIUM· v2
Creative Cloud Desktop Application versions 5.0 and earlier have a time-of-check to time-of-use (toctou) race condition vulnerability. Successful exploitation could lead to arbitrary file deletion.
1Google
1Android
Jun 17, 2026
Mar 24, 2020
N/A· v4
8.1 HIGH· v3
9.3 HIGH· v2
An issue was discovered on Samsung mobile devices with N(7.X) and O(8.X) (Exynos 7570, 7870, 7880, 7885, 8890, 8895, and 9810 chipsets) software. A double-fetch vulnerability in Trustlet allows arbitrary TEE code executi...Show more
An issue was discovered on Samsung mobile devices with N(7.X) and O(8.X) (Exynos 7570, 7870, 7880, 7885, 8890, 8895, and 9810 chipsets) software. A double-fetch vulnerability in Trustlet allows arbitrary TEE code execution. The Samsung ID is SVE-2019-13910 (April 2019).Show less
1Parallels
1Parallels Desktop
Jun 17, 2026
Mar 23, 2020
N/A· v4
6.7 MEDIUM· v3
4.6 MEDIUM· v2
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.2-47123. An attacker must first obtain the ability to execute high-privileged code on the target guest...Show more
This vulnerability allows local attackers to escalate privileges on affected installations of Parallels Desktop 15.1.2-47123. An attacker must first obtain the ability to execute high-privileged code on the target guest system in order to exploit this vulnerability. The specific flaw exists within the xHCI component. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the hypervisor. Was ZDI-CAN-10031.Show less
1Yarnpkg
1Yarn
Jun 17, 2026
Mar 15, 2020
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
The package integrity validation in yarn < 1.19.0 contains a TOCTOU vulnerability where the hash is computed before writing a package to cache. It's not computed again when reading from the cache. This may lead to a cach...Show more
The package integrity validation in yarn < 1.19.0 contains a TOCTOU vulnerability where the hash is computed before writing a package to cache. It's not computed again when reading from the cache. This may lead to a cache pollution attack.Show less
3Canonical
FedoraprojectOpensmtpd
3Fedora
OpensmtpdUbuntu Linux
Jun 17, 2026
Feb 25, 2020
N/A· v4
4.7 MEDIUM· v3
4.7 MEDIUM· v2
OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a combination of an untrusted search path in makemap.c and race conditions in the offline functionality in...Show more
OpenSMTPD before 6.6.4 allows local users to read arbitrary files (e.g., on some Linux distributions) because of a combination of an untrusted search path in makemap.c and race conditions in the offline functionality in smtpd.c.Show less
2Misp
Misp Project
2Misp
Misp
Jun 22, 2026
Feb 12, 2020
N/A· v4
5.9 MEDIUM· v3
4.3 MEDIUM· v2
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.
2Apport Project
Canonical
2Apport
Ubuntu Linux
Jun 17, 2026
Feb 8, 2020
N/A· v4
4.7 MEDIUM· v3
1.9 LOW· v2
Sander Bos discovered a time of check to time of use (TOCTTOU) vulnerability in apport that allowed a user to cause core files to be written in arbitrary directories.
2Apple
Broadcom
9Bcm43012 Firmware
Bcm43013 FirmwareBcm4356 Firmware+6 more
Jun 17, 2026
Feb 5, 2020
N/A· v4
3.1 LOW· v3
2.9 LOW· v2
An issue was discovered on Broadcom Wi-Fi client devices. Specifically timed and handcrafted traffic can cause internal errors (related to state transitions) in a WLAN device that lead to improper layer 2 Wi-Fi encryptio...Show more
An issue was discovered on Broadcom Wi-Fi client devices. Specifically timed and handcrafted traffic can cause internal errors (related to state transitions) in a WLAN device that lead to improper layer 2 Wi-Fi encryption with a consequent possibility of information disclosure over the air for a discrete set of traffic, a different vulnerability than CVE-2019-9500, CVE-2019-9501, CVE-2019-9502, and CVE-2019-9503.Show less
1Bitdefender
1Box 2 Firmware
Jun 17, 2026
Jan 27, 2020
N/A· v4
8.1 HIGH· v3
9.3 HIGH· v2
An exploitable command execution vulnerability exists in the recovery partition of Bitdefender BOX 2, version 2.0.1.91. The API method `/api/update_setup` does not perform firmware signature checks atomically, leading to...Show more
An exploitable command execution vulnerability exists in the recovery partition of Bitdefender BOX 2, version 2.0.1.91. The API method `/api/update_setup` does not perform firmware signature checks atomically, leading to an exploitable race condition (TOCTTOU) that allows arbitrary execution of system commands. This issue affects: Bitdefender Bitdefender BOX 2 versions prior to 2.1.47.36.Show less
1Google
1Android
Jun 17, 2026
Jan 8, 2020
N/A· v4
6.7 MEDIUM· v3
3.7 LOW· v2
In onCreate of InstallStart.java, there is a possible package validation bypass due to a time-of-check time-of-use vulnerability. This could lead to local escalation of privilege with no additional execution privileges n...Show more
In onCreate of InstallStart.java, there is a possible package validation bypass due to a time-of-check time-of-use vulnerability. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Product: Android Versions: Android-8.0 Android ID: A-140195904Show less
1Bullguard
1Premium Protection
Jun 17, 2026
Dec 26, 2019
N/A· v4
5.9 MEDIUM· v3
5.8 MEDIUM· v2
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.
1Cyxtera
1Appgate Sdp
Jun 17, 2026
Dec 13, 2019
N/A· v4
8.8 HIGH· v3
6.5 MEDIUM· v2
In Cyxtera AppGate SDP Client 4.1.x through 4.3.x before 4.3.2 on Windows, a local or remote user from the same domain can gain privileges.