Common Weakness Enumeration
CWE-367
AllowedTime-of-check Time-of-use (TOCTOU) Race Condition
Abstraction: Base · Status: Incomplete
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.
1063 vulnerabilities reference this CWE, most recent first.
CVE-2025-9810 (GCVE-0-2025-9810)
Vulnerability from cvelistv5 – Published: 2025-09-01 19:03 – Updated: 2026-04-22 15:06
VLAI
EPSS
VEX
Title
TOCTOU race in Linenoise enables arbitrary file overwrite and permission changes
Summary
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.
Severity
6.8 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
Credits
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CVE-2025-8192 (GCVE-0-2025-8192)
Vulnerability from cvelistv5 – Published: 2025-07-31 08:24 – Updated: 2025-07-31 13:20
VLAI
EPSS
VEX
Title
Race condition in AndroidTV TvSettings
Summary
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Date Public
2025-06-10 22:00
Credits
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CVE-2025-6217 (GCVE-0-2025-6217)
Vulnerability from cvelistv5 – Published: 2025-06-21 00:08 – Updated: 2025-06-23 20:16
VLAI
EPSS
VEX
Title
PEAK-System Driver PCANFD_ADD_FILTERS Time-Of-Check Time-Of-Use Information Disclosure Vulnerability
Summary
PEAK-System Driver PCANFD_ADD_FILTERS Time-Of-Check Time-Of-Use Information Disclosure Vulnerability. This vulnerability allows local attackers to disclose sensitive information on affected installations of PEAK-System Driver. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the handling of the PCANFD_ADD_FILTERS IOCTL. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel. Was ZDI-CAN-24161.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.zerodayinitiative.com/advisories/ZDI-… | x_research-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| PEAK-System | Driver |
Affected:
8.18.0
|
Date Public
2025-06-18 19:33
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CVE-2025-3599 (GCVE-0-2025-3599)
Vulnerability from cvelistv5 – Published: 2025-04-30 16:49 – Updated: 2025-04-30 17:27
VLAI
EPSS
VEX
Title
Symantec Endpoint Protection Elevation of Privilege
Summary
Symantec Endpoint Protection Windows Agent, running an ERASER Engine prior to 119.1.7.8, may be susceptible to an Elevation of Privilege vulnerability, which may allow an attacker to delete resources that are normally protected from an application or user.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Symantec | Symantec Endpoint Protection |
Unaffected:
119.1.7.8
|
Date Public
2025-04-30 16:48
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CVE-2025-3464 (GCVE-0-2025-3464)
Vulnerability from cvelistv5 – Published: 2025-06-16 09:06 – Updated: 2025-07-10 19:00
VLAI
EPSS
VEX
Summary
A race condition vulnerability exists in Armoury Crate. This vulnerability arises from a Time-of-check Time-of-use issue, potentially leading to authentication bypass.
Refer to the 'Security Update for Armoury Crate App' section on the ASUS Security Advisory for more information.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
3 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ASUS | Armoury Crate |
Affected:
v5.9.9.0~v6.1.18
|
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CVE-2025-2425 (GCVE-0-2025-2425)
Vulnerability from cvelistv5 – Published: 2025-07-18 09:20 – Updated: 2025-07-18 11:37
VLAI
EPSS
VEX
Title
TOCTOU race condition vulnerability in ESET products on Windows
Summary
Time-of-check to time-of-use race condition vulnerability potentially allowed an attacker to use the installed ESET security software to clear the content of an arbitrary file on the file system.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
11 products
| Vendor | Product | Version | |
|---|---|---|---|
| ESET, spol. s.r.o | ESET NOD32 Antivirus |
Affected:
0 , ≤ 18.1.13.0
(custom)
|
|
| ESET, spol. s.r.o | ESET Internet Security |
Affected:
0 , ≤ 18.1.13.0
(custom)
|
|
| ESET, spol. s.r.o | ESET Smart Security Premium |
Affected:
0 , ≤ 18.1.13.0
(custom)
|
|
| ESET, spol. s.r.o | ESET Security Ultimate |
Affected:
0 , ≤ 18.1.13.0
(custom)
|
|
| ESET, spol. s.r.o | ESET Endpoint Antivirus for Windows |
Affected:
0 , ≤ 12.0.2049.0
(custom)
Affected: 0 , ≤ 11.1.2059.0 (custom) |
|
| ESET, spol. s.r.o | ESET Endpoint Security for Windows |
Affected:
0 , ≤ 12.0.2049.0
(custom)
Affected: 0 , ≤ 11.1.2059.0 (custom) |
|
| ESET, spol. s.r.o | ESET Small Business Security |
Affected:
0 , ≤ 18.1.13.0
(custom)
|
|
| ESET, spol. s.r.o | ESET Safe Server |
Affected:
0 , ≤ 18.1.13.0
(custom)
|
|
| ESET, spol. s.r.o | ESET Server Security for Windows Server |
Affected:
0 , ≤ 12.0.12004.0
(custom)
Affected: 0 , ≤ 11.1.12009.1 (custom) |
|
| ESET, spol. s.r.o | ESET Mail Security for Microsoft Exchange Server |
Affected:
0 , ≤ 12.0.10003.0
(custom)
Affected: 0 , ≤ 11.1.10011.0 (custom) |
|
| ESET, spol. s.r.o | ESET Security for Microsoft SharePoint Server |
Affected:
0 , ≤ 12.0.15004.0
(custom)
Affected: 0 , ≤ 11.1.15003.0 (custom) |
Date Public
2025-07-16 10:00
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CVE-2025-0759 (GCVE-0-2025-0759)
Vulnerability from cvelistv5 – Published: 2025-02-27 14:53 – Updated: 2025-02-27 15:11
VLAI
EPSS
VEX
Title
IBM EntireX race condition
Summary
IBM EntireX 11.1 could allow a local user to unintentionally modify data timestamp integrity due to improper shared resource synchronization.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7184194 | vendor-advisory |
Impacted products
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CVE-2024-56337 (GCVE-0-2024-56337)
Vulnerability from cvelistv5 – Published: 2024-12-20 15:28 – Updated: 2025-11-04 15:59
VLAI
EPSS
VEX
Title
Apache Tomcat: RCE due to TOCTOU issue in JSP compilation - CVE-2024-50379 mitigation was incomplete
Summary
Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in Apache Tomcat.
This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.1, from 10.1.0-M1 through 10.1.33, from 9.0.0.M1 through 9.0.97.
The following versions were EOL at the time the CVE was created but are
known to be affected: 8.5.0 though 8.5.100. Other, older, EOL versions
may also be affected.
The mitigation for CVE-2024-50379 was incomplete.
Users running Tomcat on a case insensitive file system with the default servlet write enabled (readonly initialisation
parameter set to the non-default value of false) may need additional configuration to fully mitigate CVE-2024-50379 depending on which version of Java they are using with Tomcat:
- running on Java 8 or Java 11: the system property sun.io.useCanonCaches must be explicitly set to false (it defaults to true)
- running on Java 17: the system property sun.io.useCanonCaches, if set, must be set to false (it defaults to false)
- running on Java 21 onwards: no further configuration is required (the system property and the problematic cache have been removed)
Tomcat 11.0.3, 10.1.35 and 9.0.99 onwards will include checks that sun.io.useCanonCaches is set appropriately before allowing the default servlet to be write enabled on a case insensitive file system. Tomcat will also set sun.io.useCanonCaches to false by default where it can.
Severity
9.8 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
4 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Apache Software Foundation | Apache Tomcat |
Affected:
11.0.0-M1 , ≤ 11.0.1
(semver)
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CVE-2024-54084 (GCVE-0-2024-54084)
Vulnerability from cvelistv5 – Published: 2025-03-11 14:01 – Updated: 2025-03-11 14:45
VLAI
EPSS
VEX
Title
SMM Arbitrary Write via TOCTOU Vulnerability
Summary
APTIOV contains a vulnerability in BIOS where an attacker may cause a Time-of-check Time-of-use (TOCTOU) Race Condition by local means. Successful exploitation of this vulnerability may lead to arbitrary code execution.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
Date Public
2025-03-11 14:00
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CVE-2024-53694 (GCVE-0-2024-53694)
Vulnerability from cvelistv5 – Published: 2025-03-07 16:13 – Updated: 2025-03-07 17:55
VLAI
EPSS
VEX
Title
QVPN Device Client, Qsync, Qfinder Pro
Summary
A time-of-check time-of-use (TOCTOU) race condition vulnerability has been reported to affect several product versions. If exploited, the vulnerability could allow local attackers who have gained user access to gain access to otherwise unauthorized resources.
We have already fixed the vulnerability in the following versions:
QVPN Device Client for Mac 2.2.5 and later
Qsync for Mac 5.1.3 and later
Qfinder Pro Mac 7.11.1 and later
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
1 reference
Impacted products
3 products
| Vendor | Product | Version | |
|---|---|---|---|
| QNAP Systems Inc. | QVPN Device Client for Mac |
Affected:
2.2.x , < 2.2.5
(custom)
|
|
| QNAP Systems Inc. | Qsync for Mac |
Affected:
5.1.x , < 5.1.3
(custom)
|
|
| QNAP Systems Inc. | Qfinder Pro Mac |
Affected:
7.11.x , < 7.11.1
(custom)
|
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Mitigation
Implementation
The most basic advice for TOCTOU vulnerabilities is to not perform a check before the use. This does not resolve the underlying issue of the execution of a function on a resource whose state and identity cannot be assured, but it does help to limit the false sense of security given by the check.
Mitigation
Implementation
When the file being altered is owned by the current user and group, set the effective gid and uid to that of the current user and group when executing this statement.
Mitigation
Architecture and Design
Limit the interleaving of operations on files from multiple processes.
Mitigation
Implementation
Architecture and Design
If you cannot perform operations atomically and you must share access to the resource between multiple processes or threads, then try to limit the amount of time (CPU cycles) between the check and use of the resource. This will not fix the problem, but it could make it more difficult for an attack to succeed.
Mitigation
Implementation
Recheck the resource after the use call to verify that the action was taken appropriately.
Mitigation
Architecture and Design
Ensure that some environmental locking mechanism can be used to protect resources effectively.
Mitigation
Implementation
Ensure that locking occurs before the check, as opposed to afterwards, such that the resource, as checked, is the same as it is when in use.
CAPEC-27: Leveraging Race Conditions via Symbolic Links
This attack leverages the use of symbolic links (Symlinks) in order to write to sensitive files. An attacker can create a Symlink link to a target file not otherwise accessible to them. When the privileged program tries to create a temporary file with the same name as the Symlink link, it will actually write to the target file pointed to by the attackers' Symlink link. If the attacker can insert malicious content in the temporary file they will be writing to the sensitive file by using the Symlink. The race occurs because the system checks if the temporary file exists, then creates the file. The attacker would typically create the Symlink during the interval between the check and the creation of the temporary file.
CAPEC-29: Leveraging Time-of-Check and Time-of-Use (TOCTOU) Race Conditions
This attack targets a race condition occurring between the time of check (state) for a resource and the time of use of a resource. A typical example is file access. The adversary can leverage a file access race condition by "running the race", meaning that they would modify the resource between the first time the target program accesses the file and the time the target program uses the file. During that period of time, the adversary could replace or modify the file, causing the application to behave unexpectedly.