CWE-367
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.
CVE-2025-44002 (GCVE-0-2025-44002)
Vulnerability from cvelistv5 – Published: 2025-08-26 11:05 – Updated: 2025-08-26 14:39
VLAI
Title
Arbitrary File Creation via Symbolic Link leading to Denial-of-Service
Summary
Race Condition in the Directory Validation Logic in the TeamViewer Full Client and Host prior version 15.69 on Windows allows a local non-admin user to create arbitrary files with SYSTEM privileges, potentially leading to a denial-of-service condition, via symbolic link manipulation during directory verification.
Severity
6.1 (Medium)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
1 reference
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| TeamViewer | Full Client |
Affected:
11.0.0 , < 15.69
(custom)
|
|
| TeamViewer | Host |
Affected:
11.0.0 , < 15.69
(custom)
|
Credits
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CVE-2025-46326 (GCVE-0-2025-46326)
Vulnerability from cvelistv5 – Published: 2025-04-28 22:33 – Updated: 2025-04-29 13:42
VLAI
Title
Snowflake Connector for .NET has race condition when checking access to Easy Logging configuration file
Summary
snowflake-connector-net is the Snowflake Connector for .NET. Versions starting from 2.1.2 to before 4.4.1, are vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition. When using the Easy Logging feature on Linux and macOS, the Connector reads logging configuration from a user-provided file. On Linux and macOS, the Connector verifies that the configuration file can be written to only by its owner. That check was vulnerable to a TOCTOU race condition and failed to verify that the file owner matches the user running the Connector. This could allow a local attacker with write access to the configuration file or the directory containing it to overwrite the configuration and gain control over logging level and output location. This issue has been patched in version 4.4.1.
Severity
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/snowflakedb/snowflake-connecto… | x_refsource_CONFIRM |
| https://github.com/snowflakedb/snowflake-connecto… | x_refsource_MISC |
| https://github.com/snowflakedb/snowflake-connecto… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| snowflakedb | snowflake-connector-net |
Affected:
>= 2.1.2, < 4.4.1
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CVE-2025-46327 (GCVE-0-2025-46327)
Vulnerability from cvelistv5 – Published: 2025-04-28 22:33 – Updated: 2025-04-29 13:43
VLAI
Title
Go Snowflake Driver has race condition when checking access to Easy Logging configuration file
Summary
gosnowflake is the Snowflake Golang driver. Versions starting from 1.7.0 to before 1.13.3, are vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition. When using the Easy Logging feature on Linux and macOS, the Driver reads logging configuration from a user-provided file. On Linux and macOS the Driver verifies that the configuration file can be written to only by its owner. That check was vulnerable to a TOCTOU race condition and failed to verify that the file owner matches the user running the Driver. This could allow a local attacker with write access to the configuration file or the directory containing it to overwrite the configuration and gain control over logging level and output location. This issue has been patched in version 1.13.3.
Severity
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/snowflakedb/gosnowflake/securi… | x_refsource_CONFIRM |
| https://github.com/snowflakedb/gosnowflake/commit… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| snowflakedb | gosnowflake |
Affected:
>= 1.7.0, < 1.13.3
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CVE-2025-46328 (GCVE-0-2025-46328)
Vulnerability from cvelistv5 – Published: 2025-04-28 22:33 – Updated: 2025-04-29 13:41
VLAI
Title
NodeJS Driver for Snowflake has race condition when checking access to Easy Logging configuration file
Summary
snowflake-connector-nodejs is a NodeJS driver for Snowflake. Versions starting from 1.10.0 to before 2.0.4, are vulnerable to a Time-of-Check to Time-of-Use (TOCTOU) race condition. When using the Easy Logging feature on Linux and macOS the Driver reads logging configuration from a user-provided file. On Linux and macOS the Driver verifies that the configuration file can be written to only by its owner. That check was vulnerable to a TOCTOU race condition and failed to verify that the file owner matches the user running the Driver. This could allow a local attacker with write access to the configuration file or the directory containing it to overwrite the configuration and gain control over logging level and output location. This issue has been patched in version 2.0.4.
Severity
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/snowflakedb/snowflake-connecto… | x_refsource_CONFIRM |
| https://github.com/snowflakedb/snowflake-connecto… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| snowflakedb | snowflake-connector-nodejs |
Affected:
>= 1.10.0, < 2.0.4
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CVE-2025-46336 (GCVE-0-2025-46336)
Vulnerability from cvelistv5 – Published: 2025-05-08 19:26 – Updated: 2025-05-08 20:18
VLAI
Title
Rack session gets restored after deletion
Summary
Rack::Session is a session management implementation for Rack. In versions starting from 2.0.0 to before 2.1.1, when using the Rack::Session::Pool middleware, and provided the attacker can acquire a session cookie (already a major issue), the session may be restored if the attacker can trigger a long running request (within that same session) adjacent to the user logging out, in order to retain illicit access even after a user has attempted to logout. This issue has been patched in version 2.1.1.
Severity
4.2 (Medium)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/rack/rack-session/security/adv… | x_refsource_CONFIRM |
| https://github.com/rack/rack/security/advisories/… | x_refsource_MISC |
| https://github.com/rack/rack-session/commit/c28c4… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| rack | rack-session |
Affected:
>= 2.0.0, < 2.1.1
|
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CVE-2025-46415 (GCVE-0-2025-46415)
Vulnerability from cvelistv5 – Published: 2025-06-27 00:00 – Updated: 2025-06-27 19:57
VLAI
Summary
A race condition in the Nix, Lix, and Guix package managers allows the removal of content from arbitrary folders. This affects Nix before 2.24.15, 2.26.4, 2.28.4, and 2.29.1; Lix before 2.91.2, 2.92.2, and 2.93.1; and Guix before 1.4.0-38.0e79d5b.
Severity
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
Impacted products
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CVE-2025-46805 (GCVE-0-2025-46805)
Vulnerability from cvelistv5 – Published: 2025-05-26 13:16 – Updated: 2025-05-27 14:10
VLAI
Title
Screen has a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-root
Summary
Screen version 5.0.0 and older version 4 releases have a TOCTOU race potentially allowing to send SIGHUP, SIGCONT to privileged processes when installed setuid-root.
Severity
5.5 (Medium)
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
Impacted products
Date Public
2025-05-12 15:24
Credits
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CVE-2025-47290 (GCVE-0-2025-47290)
Vulnerability from cvelistv5 – Published: 2025-05-20 18:25 – Updated: 2025-05-20 18:44
VLAI
Title
Containerd vulnerable to host filesystem access during image unpack
Summary
containerd is a container runtime. A time-of-check to time-of-use (TOCTOU) vulnerability was found in containerd v2.1.0. While unpacking an image during an image pull, specially crafted container images could arbitrarily modify the host file system. The only affected version of containerd is 2.1.0. Other versions of containerd are not affected. This bug has been fixed in containerd 2.1.1. Users should update to this version to resolve the issue. As a workaround, ensure that only trusted images are used and that only trusted users have permissions to import images.
Severity
CWE
- CWE-367 - Time-of-check Time-of-use (TOCTOU) Race Condition
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/containerd/containerd/security… | x_refsource_CONFIRM |
| https://github.com/containerd/containerd/commit/c… | x_refsource_MISC |
| https://github.com/containerd/containerd/releases… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| containerd | containerd |
Affected:
= 2.1.0
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CVE-2025-47332 (GCVE-0-2025-47332)
Vulnerability from cvelistv5 – Published: 2026-01-06 22:48 – Updated: 2026-01-07 16:16
VLAI
Title
Time-of-check Time-of-use (TOCTOU) Race Condition in Camera Driver
Summary
Memory corruption while processing a config call from userspace.
Severity
6.7 (Medium)
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:
FastConnect 6200
Affected: FastConnect 6700 Affected: FastConnect 6900 Affected: FastConnect 7800 Affected: QCA6698AU Affected: QCA6797AQ Affected: QCM4490 Affected: QCM8550 Affected: QCS4490 Affected: QCS8550 Affected: QMP1000 Affected: SG8275 Affected: SG8275P Affected: SM6650 Affected: SM6650P Affected: SM7435 Affected: SM7550 Affected: SM7550P Affected: SM7635 Affected: SM7635P Affected: SM7675 Affected: SM7675P Affected: SM8475P Affected: SM8550P Affected: SM8635 Affected: SM8635P Affected: SM8650Q Affected: SM8735 Affected: SM8750 Affected: SM8750P Affected: Snapdragon 4 Gen 2 Mobile Platform Affected: Snapdragon 6 Gen 1 Mobile Platform Affected: Snapdragon 7 Gen 1 Mobile Platform Affected: Snapdragon 7+ Gen 2 Mobile Platform Affected: Snapdragon 8 Gen 2 Mobile Platform Affected: Snapdragon 8 Gen 3 Mobile Platform Affected: Snapdragon 8+ Gen 1 Mobile Platform Affected: Snapdragon 8+ Gen 2 Mobile Platform Affected: Snapdragon AR1 Gen 1 Platform Affected: Snapdragon AR1 Gen 1 Platform "Luna1" Affected: Snapdragon AR2 Gen 1 Platform Affected: SSG2115P Affected: SSG2125P Affected: SXR1230P Affected: SXR2230P Affected: SXR2250P Affected: SXR2330P Affected: SXR2350P Affected: WCD9370 Affected: WCD9371 Affected: WCD9375 Affected: WCD9378 Affected: WCD9380 Affected: WCD9385 Affected: WCD9390 Affected: WCD9395 Affected: WCN3950 Affected: WCN3988 Affected: WCN6650 Affected: WCN6740 Affected: WCN6755 Affected: WCN7750 Affected: WCN7860 Affected: WCN7861 Affected: WCN7880 Affected: WCN7881 Affected: WSA8810 Affected: WSA8815 Affected: WSA8830 Affected: WSA8832 Affected: WSA8835 Affected: WSA8840 Affected: WSA8845 Affected: WSA8845H |
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{
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{
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CVE-2025-47344 (GCVE-0-2025-47344)
Vulnerability from cvelistv5 – Published: 2026-01-06 22:48 – Updated: 2026-01-07 16:16
VLAI
Title
Time-of-check Time-of-use (TOCTOU) Race Condition in Camera Driver
Summary
Memory corruption while handling sensor utility operations.
Severity
6.7 (Medium)
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:
CSRA6620
Affected: CSRA6640 Affected: FastConnect 6200 Affected: FastConnect 6700 Affected: FastConnect 6900 Affected: FastConnect 7800 Affected: QCA6574 Affected: QCA6574A Affected: QCA6574AU Affected: QCA6595AU Affected: QCA6696 Affected: QCA6698AQ Affected: QCM4490 Affected: QCM5430 Affected: QCM6490 Affected: QCS4490 Affected: QCS5430 Affected: QCS615 Affected: QCS6490 Affected: QCS8550 Affected: QCS9100 Affected: QMP1000 Affected: Qualcommr Video Collaboration VC3 Platform Affected: Robotics RB2 Platform Affected: SA6155P Affected: SA8155P Affected: SA8195P Affected: SM4635 Affected: SM6650 Affected: SM6650P Affected: SM7635 Affected: SM7635P Affected: SM7675 Affected: SM7675P Affected: SM8635 Affected: SM8635P Affected: SM8650Q Affected: SM8735 Affected: SM8750 Affected: SM8750P Affected: Snapdragon 4 Gen 1 Mobile Platform Affected: Snapdragon 4 Gen 2 Mobile Platform Affected: Snapdragon 480 5G Mobile Platform Affected: Snapdragon 480+ 5G Mobile Platform (SM4350-AC) Affected: Snapdragon 662 Mobile Platform Affected: Snapdragon 680 4G Mobile Platform Affected: Snapdragon 685 4G Mobile Platform (SM6225-AD) Affected: Snapdragon 695 5G Mobile Platform Affected: Snapdragon 8 Gen 3 Mobile Platform Affected: Snapdragon AR1 Gen 1 Platform Affected: Snapdragon AR1 Gen 1 Platform "Luna1" Affected: Snapdragon AR2 Gen 1 Platform Affected: SXR2230P Affected: SXR2250P Affected: SXR2330P Affected: SXR2350P Affected: WCD9335 Affected: WCD9370 Affected: WCD9375 Affected: WCD9378 Affected: WCD9380 Affected: WCD9385 Affected: WCD9390 Affected: WCD9395 Affected: WCN3950 Affected: WCN3988 Affected: WCN6650 Affected: WCN6740 Affected: WCN6755 Affected: WCN7750 Affected: WCN7860 Affected: WCN7861 Affected: WCN7880 Affected: WCN7881 Affected: WSA8810 Affected: WSA8815 Affected: WSA8830 Affected: WSA8832 Affected: WSA8835 Affected: WSA8840 Affected: WSA8845 Affected: WSA8845H |
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"version": "CSRA6620"
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"version": "QCM4490"
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{
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{
"status": "affected",
"version": "QCM6490"
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{
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{
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{
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"version": "QCS8550"
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{
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"version": "QCS9100"
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{
"status": "affected",
"version": "QMP1000"
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{
"status": "affected",
"version": "Qualcommr Video Collaboration VC3 Platform"
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"status": "affected",
"version": "Robotics RB2 Platform"
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{
"status": "affected",
"version": "SA6155P"
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"status": "affected",
"version": "SA8155P"
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"status": "affected",
"version": "SA8195P"
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"status": "affected",
"version": "SM4635"
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"status": "affected",
"version": "SM6650"
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"version": "SM6650P"
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"version": "SM7635"
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"version": "SM7675"
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"version": "SM8635"
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{
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"version": "SM8750P"
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{
"status": "affected",
"version": "Snapdragon 4 Gen 1 Mobile Platform"
},
{
"status": "affected",
"version": "Snapdragon 4 Gen 2 Mobile Platform"
},
{
"status": "affected",
"version": "Snapdragon 480 5G Mobile Platform"
},
{
"status": "affected",
"version": "Snapdragon 480+ 5G Mobile Platform (SM4350-AC)"
},
{
"status": "affected",
"version": "Snapdragon 662 Mobile Platform"
},
{
"status": "affected",
"version": "Snapdragon 680 4G Mobile Platform"
},
{
"status": "affected",
"version": "Snapdragon 685 4G Mobile Platform (SM6225-AD)"
},
{
"status": "affected",
"version": "Snapdragon 695 5G Mobile Platform"
},
{
"status": "affected",
"version": "Snapdragon 8 Gen 3 Mobile Platform"
},
{
"status": "affected",
"version": "Snapdragon AR1 Gen 1 Platform"
},
{
"status": "affected",
"version": "Snapdragon AR1 Gen 1 Platform \"Luna1\""
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{
"status": "affected",
"version": "Snapdragon AR2 Gen 1 Platform"
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{
"status": "affected",
"version": "SXR2230P"
},
{
"status": "affected",
"version": "SXR2250P"
},
{
"status": "affected",
"version": "SXR2330P"
},
{
"status": "affected",
"version": "SXR2350P"
},
{
"status": "affected",
"version": "WCD9335"
},
{
"status": "affected",
"version": "WCD9370"
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{
"status": "affected",
"version": "WCD9375"
},
{
"status": "affected",
"version": "WCD9378"
},
{
"status": "affected",
"version": "WCD9380"
},
{
"status": "affected",
"version": "WCD9385"
},
{
"status": "affected",
"version": "WCD9390"
},
{
"status": "affected",
"version": "WCD9395"
},
{
"status": "affected",
"version": "WCN3950"
},
{
"status": "affected",
"version": "WCN3988"
},
{
"status": "affected",
"version": "WCN6650"
},
{
"status": "affected",
"version": "WCN6740"
},
{
"status": "affected",
"version": "WCN6755"
},
{
"status": "affected",
"version": "WCN7750"
},
{
"status": "affected",
"version": "WCN7860"
},
{
"status": "affected",
"version": "WCN7861"
},
{
"status": "affected",
"version": "WCN7880"
},
{
"status": "affected",
"version": "WCN7881"
},
{
"status": "affected",
"version": "WSA8810"
},
{
"status": "affected",
"version": "WSA8815"
},
{
"status": "affected",
"version": "WSA8830"
},
{
"status": "affected",
"version": "WSA8832"
},
{
"status": "affected",
"version": "WSA8835"
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{
"status": "affected",
"version": "WSA8840"
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{
"status": "affected",
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"status": "affected",
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"integrityImpact": "HIGH",
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Mitigation
Phase: Implementation
Description:
- 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
Phase: Implementation
Description:
- 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
Phase: Architecture and Design
Description:
- Limit the interleaving of operations on files from multiple processes.
Mitigation
Phases: Implementation, Architecture and Design
Description:
- 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
Phase: Implementation
Description:
- Recheck the resource after the use call to verify that the action was taken appropriately.
Mitigation
Phase: Architecture and Design
Description:
- Ensure that some environmental locking mechanism can be used to protect resources effectively.
Mitigation
Phase: Implementation
Description:
- 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.