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CWE-367

788 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 (788)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
1Microsoft
8Windows 10
Windows 7Windows 8.1+5 more
Jun 17, 2026
Aug 17, 2020
N/A· v4
7.8 HIGH· v3
7.2 HIGH· v2
An elevation of privilege vulnerability exists when the Windows Print Spooler service improperly allows arbitrary writing to the file system. An attacker who successfully exploited this vulnerability could run arbitrary...Show more
An elevation of privilege vulnerability exists when the Windows Print Spooler service improperly allows arbitrary writing to the file system. An attacker who successfully exploited this vulnerability could run arbitrary code with elevated system privileges. 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 have to log on to an affected system and run a specially crafted script or application. The update addresses the vulnerability by correcting how the Windows Print Spooler Component writes to the file system.Show less
1Google
1Android
Jun 17, 2026
Aug 11, 2020
N/A· v4
7.0 HIGH· v3
6.9 MEDIUM· v2
In updatePreferenceIntents of AccountTypePreferenceLoader, there is a possible confused deputy attack due to a race condition. This could lead to local escalation of privilege and launching privileged activities with no...Show more
In updatePreferenceIntents of AccountTypePreferenceLoader, there is a possible confused deputy attack due to a race condition. This could lead to local escalation of privilege and launching privileged activities with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-8.1 Android-9 Android-10 Android-8.0Android ID: A-150946634Show less
1Canonical
2Apport
Ubuntu Linux
Jun 17, 2026
Aug 6, 2020
N/A· v4
7.0 HIGH· v3
4.4 MEDIUM· v2
TOCTOU Race Condition vulnerability in apport allows a local attacker to escalate privileges and execute arbitrary code. An attacker may exit the crashed process and exploit PID recycling to spawn a root process with the...Show more
TOCTOU Race Condition vulnerability in apport allows a local attacker to escalate privileges and execute arbitrary code. An attacker may exit the crashed process and exploit PID recycling to spawn a root process with the same PID as the crashed process, which can then be used to escalate privileges. Fixed in 2.20.1-0ubuntu2.24, 2.20.9 versions prior to 2.20.9-0ubuntu7.16 and 2.20.11 versions prior to 2.20.11-0ubuntu27.6. Was ZDI-CAN-11234.Show less
1Freebsd
1Freebsd
Jun 17, 2026
Aug 6, 2020
N/A· v4
7.0 HIGH· v3
4.4 MEDIUM· v2
In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a...Show more
In FreeBSD 12.1-STABLE before r363918, 12.1-RELEASE before p8, 11.4-STABLE before r363919, 11.4-RELEASE before p2, and 11.3-RELEASE before p12, the sendmsg system call in the compat32 subsystem on 64-bit platforms has a time-of-check to time-of-use vulnerability allowing a mailcious userspace program to modify control message headers after they were validation.Show less
2Opensuse
Oracle
2Leap
Vm Virtualbox
Jun 17, 2026
Jul 15, 2020
N/A· v4
7.5 HIGH· v3
4.4 MEDIUM· v2
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are Prior to 5.2.44, prior to 6.0.24 and prior to 6.1.12. Difficult to exploit vulnerabil...Show more
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are Prior to 5.2.44, prior to 6.0.24 and prior to 6.1.12. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle VM VirtualBox. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H).Show less
2Opensuse
Oracle
2Leap
Vm Virtualbox
Jun 17, 2026
Jul 15, 2020
N/A· v4
7.5 HIGH· v3
4.4 MEDIUM· v2
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are Prior to 5.2.44, prior to 6.0.24 and prior to 6.1.12. Difficult to exploit vulnerabil...Show more
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are Prior to 5.2.44, prior to 6.0.24 and prior to 6.1.12. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle VM VirtualBox. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H).Show less
2Opensuse
Oracle
2Leap
Vm Virtualbox
Jun 17, 2026
Jul 15, 2020
N/A· v4
7.5 HIGH· v3
4.4 MEDIUM· v2
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are Prior to 5.2.44, prior to 6.0.24 and prior to 6.1.12. Difficult to exploit vulnerabil...Show more
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that are affected are Prior to 5.2.44, prior to 6.0.24 and prior to 6.1.12. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where Oracle VM VirtualBox executes to compromise Oracle VM VirtualBox. While the vulnerability is in Oracle VM VirtualBox, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle VM VirtualBox. CVSS 3.1 Base Score 7.5 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H).Show less
2Cisofy
Fedoraproject
2Fedora
Lynis
Jun 17, 2026
Jun 18, 2020
N/A· v4
4.2 MEDIUM· v3
3.7 LOW· v2
CISOfy Lynis before 3.0.0 has Incorrect Access Control because of a TOCTOU race condition. The routine to check the log and report file permissions was not working as intended and could be bypassed locally. Because of th...Show more
CISOfy Lynis before 3.0.0 has Incorrect Access Control because of a TOCTOU race condition. The routine to check the log and report file permissions was not working as intended and could be bypassed locally. Because of the race, an unprivileged attacker can set up a log and report file, and control that up to the point where the specific routine is doing its check. After that, the file can be removed, recreated, and used for additional attacks.Show less
1Pulsesecure
2Pulse Secure Desktop Client
Pulse Secure Installer Service
Jun 17, 2026
Jun 16, 2020
N/A· v4
7.0 HIGH· v3
6.9 MEDIUM· v2
A time-of-check time-of-use vulnerability in PulseSecureService.exe in Pulse Secure Client versions prior to 9.1.6 down to 5.3 R70 for Windows (which runs as NT AUTHORITY/SYSTEM) allows unprivileged users to run a Micros...Show more
A time-of-check time-of-use vulnerability in PulseSecureService.exe in Pulse Secure Client versions prior to 9.1.6 down to 5.3 R70 for Windows (which runs as NT AUTHORITY/SYSTEM) allows unprivileged users to run a Microsoft Installer executable with elevated privileges.Show less
1Chownr Project
1Chownr
Nov 21, 2024
Jun 15, 2020
N/A· v4
2.5 LOW· v3
1.9 LOW· v2
A TOCTOU issue in the chownr package before 1.1.0 for Node.js 10.10 could allow a local attacker to trick it into descending into unintended directories via symlink attacks.
1Google
1Android
Jun 17, 2026
Jun 11, 2020
N/A· v4
7.0 HIGH· v3
5.1 MEDIUM· v2
In InstallPackage of package.cpp, there is a possible bypass of a signature check due to a Time of Check/Time of Use condition. This could lead to local escalation of privilege by allowing a bypass of the initial zip fil...Show more
In InstallPackage of package.cpp, there is a possible bypass of a signature check due to a Time of Check/Time of Use condition. This could lead to local escalation of privilege by allowing a bypass of the initial zip file signature check for an OS update with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-136498130Show less
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.