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.
1068 vulnerabilities reference this CWE, most recent first.
CVE-2024-43067 (GCVE-0-2024-43067)
Vulnerability from cvelistv5 – Published: 2025-04-07 10:15 – Updated: 2026-02-26 18:28
VLAI
EPSS
VEX
Title
Time-of-check Time-of-use (TOCTOU) Race Condition in Camera
Summary
Memory corruption occurs during the copying of read data from the EEPROM because the IO configuration is exposed as shared memory.
Severity
7.8 (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
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Qualcomm, Inc. | Snapdragon |
Affected:
C-V2X 9150
Affected: FastConnect 6800 Affected: FastConnect 6900 Affected: FastConnect 7800 Affected: QAM8295P Affected: QCA6391 Affected: QCA6426 Affected: QCA6436 Affected: QCA6574AU Affected: QCA6696 Affected: QCN9074 Affected: QCS410 Affected: QCS610 Affected: QSM8250 Affected: Qualcomm Video Collaboration VC1 Platform Affected: Qualcomm Video Collaboration VC3 Platform Affected: SA6145P Affected: SA6150P Affected: SA6155P Affected: SA8145P Affected: SA8150P Affected: SA8155P Affected: SA8195P Affected: SA8295P Affected: SA8530P Affected: SA8540P Affected: SA9000P Affected: SD865 5G Affected: SDM429W Affected: SDX55 Affected: Snapdragon 429 Mobile Platform Affected: Snapdragon 8 Gen 1 Mobile Platform Affected: Snapdragon 865 5G Mobile Platform Affected: Snapdragon 865+ 5G Mobile Platform (SM8250-AB) Affected: Snapdragon 870 5G Mobile Platform (SM8250-AC) Affected: Snapdragon W5+ Gen 1 Wearable Platform Affected: Snapdragon X55 5G Modem-RF System Affected: Snapdragon XR2 5G Platform Affected: SW5100 Affected: SW5100P Affected: SXR2130 Affected: SXR2230P Affected: SXR2250P Affected: WCD9341 Affected: WCD9370 Affected: WCD9380 Affected: WCD9385 Affected: WCN3620 Affected: WCN3660B Affected: WCN3680B Affected: WCN3950 Affected: WCN3980 Affected: WCN3988 Affected: WSA8810 Affected: WSA8815 Affected: WSA8830 Affected: WSA8832 Affected: WSA8835 |
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CVE-2024-42446 (GCVE-0-2024-42446)
Vulnerability from cvelistv5 – Published: 2025-05-13 14:02 – Updated: 2025-05-13 15:16
VLAI
EPSS
VEX
Title
TOCTOU in SmmWhea
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
2025-05-13 14:01
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CVE-2024-42444 (GCVE-0-2024-42444)
Vulnerability from cvelistv5 – Published: 2025-01-14 15:00 – Updated: 2025-01-14 15:45
VLAI
EPSS
VEX
Title
TOCTOU Race Condition between DMA and SMM
Summary
APTIOV contains a vulnerability in BIOS where an attacker may cause a TOCTOU Race Condition by local means. Successful exploitation of this vulnerability may lead to execution of arbitrary code on the target device.
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
2025-01-14 15:00
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CVE-2024-41917 (GCVE-0-2024-41917)
Vulnerability from cvelistv5 – Published: 2025-02-12 21:19 – Updated: 2025-02-18 17:33
VLAI
EPSS
VEX
Summary
Time-of-check time-of-use race condition for some Intel(R) Battery Life Diagnostic Tool software before version 2.4.1 may allow an authenticated user to potentially enable escalation of privilege via local access.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- Escalation of Privilege
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | Intel(R) Battery Life Diagnostic Tool software |
Affected:
before version 2.4.1
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CVE-2024-41787 (GCVE-0-2024-41787)
Vulnerability from cvelistv5 – Published: 2025-01-10 13:18 – Updated: 2025-01-10 14:48
VLAI
EPSS
VEX
Title
IBM Engineering Requirements Management DOORS Next code execution
Summary
IBM Engineering Requirements Management DOORS Next 7.0.2 and 7.0.3 could allow a remote attacker to bypass security restrictions, caused by a race condition. By sending a specially crafted request, an attacker could exploit this vulnerability to remotely execute code.
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
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Engineering Requirements Management DOORS Next |
Affected:
7.0.2, 7.0.3
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CVE-2024-41779 (GCVE-0-2024-41779)
Vulnerability from cvelistv5 – Published: 2024-11-22 12:02 – Updated: 2024-11-22 15:34
VLAI
EPSS
VEX
Title
IBM Engineering Systems Design Rhapsody - Model Manager
Summary
IBM Engineering Systems Design Rhapsody - Model Manager 7.0.2 and 7.0.3 could allow a remote attacker to bypass security restrictions, caused by a race condition. By sending a specially crafted request, an attacker could exploit this vulnerability to remotely execute code.
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
1 reference
| URL | Tags |
|---|---|
| https://www.ibm.com/support/pages/node/7172535 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| IBM | Engineering Systems Design Rhapsody - Model Manager |
Affected:
7.0.2, 7.0.3
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CVE-2024-39826 (GCVE-0-2024-39826)
Vulnerability from cvelistv5 – Published: 2024-07-15 17:24 – Updated: 2025-10-02 20:43
VLAI
EPSS
VEX
Title
Zoom Workplace Apps and SDKs - Path traversal
Summary
Race condition in Team Chat for some Zoom Workplace Apps and SDKs for Windows may allow an authenticated user to conduct information disclosure via network access.
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
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Zoom Communications, Inc | Zoom Workplace Apps and SDKs |
Affected:
see references
|
Date Public
2024-07-09 12:00
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CVE-2024-39821 (GCVE-0-2024-39821)
Vulnerability from cvelistv5 – Published: 2024-07-15 17:31 – Updated: 2024-08-02 04:26
VLAI
EPSS
VEX
Title
Zoom Workplace App for Windows and Zoom Rooms App for Windows - Race Condition
Summary
Race condition in the installer for Zoom Workplace App for Windows and Zoom Rooms App for Windows may allow an authenticated user to conduct a denial of service via local access.
Severity
6.6 (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 | |
|---|---|---|---|
| Zoom Communications, Inc | Zoom Workplace App for Windows and Zoom Rooms App for Windows |
Affected:
see references
|
Date Public
2024-07-09 12:00
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CVE-2024-39425 (GCVE-0-2024-39425)
Vulnerability from cvelistv5 – Published: 2024-08-14 15:07 – Updated: 2024-08-15 03:55
VLAI
EPSS
VEX
Title
Security vulnerability in AdobeARMHelper
Summary
Acrobat Reader versions 20.005.30636, 24.002.20965, 24.002.20964, 24.001.30123 and earlier are affected by a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability that could lead to privilege escalation. Exploitation of this issue require local low-privilege access to the affected system and attack complexity is high.
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 (CWE-367)
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 24.001.30123
(semver)
|
|
| adobe | acrobat_dc |
Affected:
0 , ≤ 24.002.20991
(semver)
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:*:windows:*:* |
|
| adobe | acrobat_dc |
Affected:
0 , ≤ 24.002.20964
(semver)
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:*:macos:*:* |
|
| adobe | acrobat |
Affected:
0 , ≤ 24.001.30123
(custom)
cpe:2.3:a:adobe:acrobat:*:*:*:*:*:*:*:* |
|
| adobe | acrobat |
Affected:
0 , ≤ 24.001.30123
(semver)
Affected: 20.0 , ≤ 20.005.30636 (semver) cpe:2.3:a:adobe:acrobat:*:*:*:*:*:windows:*:* |
|
| adobe | acrobat |
Affected:
0 , ≤ 24.001.30123
(semver)
Affected: 20.0 , ≤ 20.005.30635 (semver) cpe:2.3:a:adobe:acrobat:*:*:*:*:*:macos:*:* |
|
| adobe | acrobat_reader |
Affected:
0 , ≤ 20.005.30636
(custom)
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:windows:*:* |
|
| adobe | acrobat_reader |
Affected:
0 , ≤ 20.005.30635
(custom)
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:macos:*:* |
|
| adobe | acrobat_reader_dc |
Affected:
0 , ≤ 24.002.20964
(semver)
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:macos:*:* |
|
| adobe | acrobat_reader_dc |
Affected:
0 , ≤ 24.002.20991
(semver)
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:windows:*:* |
Date Public
2024-08-13 17:00
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CVE-2024-39420 (GCVE-0-2024-39420)
Vulnerability from cvelistv5 – Published: 2024-08-14 15:07 – Updated: 2024-09-16 12:30
VLAI
EPSS
VEX
Title
Acrobat Reader | Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367)
Summary
Acrobat Reader versions 20.005.30636, 24.002.21005, 24.001.30159, 20.005.30655, 24.002.20965, 24.002.20964, 24.001.30123, 24.003.20054 and earlier are affected by a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability that could lead to arbitrary code execution. This vulnerability arises when the timing of actions changes the state of a resource between the checking of a condition and the use of the resource, allowing an attacker to manipulate the resource in a harmful way. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
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 (CWE-367)
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://helpx.adobe.com/security/products/acrobat… | vendor-advisory |
| https://www.talosintelligence.com/vulnerability_r… |
Impacted products
10 products
| Vendor | Product | Version | |
|---|---|---|---|
| Adobe | Acrobat Reader |
Affected:
0 , ≤ 24.003.20054
(semver)
|
|
| adobe | acrobat_dc |
Affected:
0 , ≤ 24.002.20991
(semver)
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:*:windows:*:* |
|
| adobe | acrobat_dc |
Affected:
0 , ≤ 24.002.20964
(semver)
cpe:2.3:a:adobe:acrobat_dc:*:*:*:*:*:macos:*:* |
|
| adobe | acrobat |
Affected:
0 , ≤ 24.001.30123
(custom)
cpe:2.3:a:adobe:acrobat:*:*:*:*:*:*:*:* |
|
| adobe | acrobat |
Affected:
0 , ≤ 24.001.30123
(semver)
Affected: 20.0 , ≤ 20.005.30636 (semver) cpe:2.3:a:adobe:acrobat:*:*:*:*:*:windows:*:* |
|
| adobe | acrobat |
Affected:
0 , ≤ 24.001.30123
(semver)
Affected: 20.0 , ≤ 20.005.30635 (semver) cpe:2.3:a:adobe:acrobat:*:*:*:*:*:macos:*:* |
|
| adobe | acrobat_reader |
Affected:
0 , ≤ 20.005.30636
(custom)
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:windows:*:* |
|
| adobe | acrobat_reader |
Affected:
0 , ≤ 20.005.30635
(custom)
cpe:2.3:a:adobe:acrobat_reader:*:*:*:*:*:macos:*:* |
|
| adobe | acrobat_reader_dc |
Affected:
0 , ≤ 24.002.20964
(semver)
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:macos:*:* |
|
| adobe | acrobat_reader_dc |
Affected:
0 , ≤ 24.002.20991
(semver)
cpe:2.3:a:adobe:acrobat_reader_dc:*:*:*:*:continuous:windows:*:* |
Date Public
2024-09-10 17:00
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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.