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.
1064 vulnerabilities reference this CWE, most recent first.
GHSA-4H72-4M4G-HR3G
Vulnerability from github – Published: 2025-04-10 15:31 – Updated: 2025-04-10 15:31MSI Center before 2.0.52.0 allows TOCTOU Local Privilege Escalation.
{
"affected": [],
"aliases": [
"CVE-2025-27812"
],
"database_specific": {
"cwe_ids": [
"CWE-367"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-04-10T13:15:51Z",
"severity": "HIGH"
},
"details": "MSI Center before 2.0.52.0 allows TOCTOU Local Privilege Escalation.",
"id": "GHSA-4h72-4m4g-hr3g",
"modified": "2025-04-10T15:31:48Z",
"published": "2025-04-10T15:31:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27812"
},
{
"type": "WEB",
"url": "https://csr.msi.com/global/product-security-advisories"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4HMH-PM5P-9J7J
Vulnerability from github – Published: 2025-02-12 03:31 – Updated: 2025-04-11 15:32NVIDIA Container Toolkit for Linux contains a Time-of-Check Time-of-Use (TOCTOU) vulnerability when used with default configuration, where a crafted container image could gain access to the host file system. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.
{
"affected": [],
"aliases": [
"CVE-2025-23359"
],
"database_specific": {
"cwe_ids": [
"CWE-367"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-12T01:15:09Z",
"severity": "HIGH"
},
"details": "NVIDIA Container Toolkit for Linux contains a Time-of-Check Time-of-Use (TOCTOU) vulnerability when used with default configuration, where a crafted container image could gain access to the host file system. A successful exploit of this vulnerability might lead to code execution, denial of service, escalation of privileges, information disclosure, and data tampering.",
"id": "GHSA-4hmh-pm5p-9j7j",
"modified": "2025-04-11T15:32:26Z",
"published": "2025-02-12T03:31:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-23359"
},
{
"type": "WEB",
"url": "https://nvidia.custhelp.com/app/answers/detail/a_id/5616"
},
{
"type": "WEB",
"url": "https://thehackernews.com/2025/04/incomplete-patch-in-nvidia-toolkit.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4JPM-2CRW-5QQR
Vulnerability from github – Published: 2024-11-12 18:30 – Updated: 2024-11-12 18:30Windows Registry Elevation of Privilege Vulnerability
{
"affected": [],
"aliases": [
"CVE-2024-43452"
],
"database_specific": {
"cwe_ids": [
"CWE-367"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-12T18:15:22Z",
"severity": "HIGH"
},
"details": "Windows Registry Elevation of Privilege Vulnerability",
"id": "GHSA-4jpm-2crw-5qqr",
"modified": "2024-11-12T18:30:58Z",
"published": "2024-11-12T18:30:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-43452"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43452"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4MC9-QPVM-P7P4
Vulnerability from github – Published: 2023-02-15 03:30 – Updated: 2023-02-23 18:31An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. The IhisiDxe driver uses the command buffer to pass input and output data. By modifying the command buffer contents with DMA after the input parameters have been checked but before they are used, the IHISI SMM code may be convinced to modify SMRAM or OS, leading to possible data corruption or escalation of privileges.
{
"affected": [],
"aliases": [
"CVE-2022-32471"
],
"database_specific": {
"cwe_ids": [
"CWE-367"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-02-15T02:15:00Z",
"severity": "HIGH"
},
"details": "An issue was discovered in IhisiSmm in Insyde InsydeH2O with kernel 5.0 through 5.5. The IhisiDxe driver uses the command buffer to pass input and output data. By modifying the command buffer contents with DMA after the input parameters have been checked but before they are used, the IHISI SMM code may be convinced to modify SMRAM or OS, leading to possible data corruption or escalation of privileges.",
"id": "GHSA-4mc9-qpvm-p7p4",
"modified": "2023-02-23T18:31:05Z",
"published": "2023-02-15T03:30:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-32471"
},
{
"type": "WEB",
"url": "https://www.insyde.com/security-pledge"
},
{
"type": "WEB",
"url": "https://www.insyde.com/security-pledge/SA-2023003"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4MCW-RVPF-X558
Vulnerability from github – Published: 2025-12-05 18:31 – Updated: 2025-12-10 06:30GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 prior to 18.4.5, 18.5 prior to 18.5.3, and 18.6 prior to 18.6.1 that could have allowed an authenticated user to obtain credentials from higher-privileged users and perform actions in their context under specific conditions.
{
"affected": [],
"aliases": [
"CVE-2024-9183"
],
"database_specific": {
"cwe_ids": [
"CWE-367"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-05T17:16:01Z",
"severity": "HIGH"
},
"details": "GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 prior to 18.4.5, 18.5 prior to 18.5.3, and 18.6 prior to 18.6.1 that could have allowed an authenticated user to obtain credentials from higher-privileged users and perform actions in their context under specific conditions.",
"id": "GHSA-4mcw-rvpf-x558",
"modified": "2025-12-10T06:30:23Z",
"published": "2025-12-05T18:31:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-9183"
},
{
"type": "WEB",
"url": "https://hackerone.com/reports/2707421"
},
{
"type": "WEB",
"url": "https://about.gitlab.com/releases/2025/11/26/patch-release-gitlab-18-6-1-released"
},
{
"type": "WEB",
"url": "https://gitlab.com/gitlab-org/gitlab/-/issues/494478"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-4MP8-C9W5-FF64
Vulnerability from github – Published: 2025-07-03 09:30 – Updated: 2025-12-17 18:31In the Linux kernel, the following vulnerability has been resolved:
net: Fix TOCTOU issue in sk_is_readable()
sk->sk_prot->sock_is_readable is a valid function pointer when sk resides in a sockmap. After the last sk_psock_put() (which usually happens when socket is removed from sockmap), sk->sk_prot gets restored and sk->sk_prot->sock_is_readable becomes NULL.
This makes sk_is_readable() racy, if the value of sk->sk_prot is reloaded after the initial check. Which in turn may lead to a null pointer dereference.
Ensure the function pointer does not turn NULL after the check.
{
"affected": [],
"aliases": [
"CVE-2025-38112"
],
"database_specific": {
"cwe_ids": [
"CWE-367"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-07-03T09:15:24Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: Fix TOCTOU issue in sk_is_readable()\n\nsk-\u003esk_prot-\u003esock_is_readable is a valid function pointer when sk resides\nin a sockmap. After the last sk_psock_put() (which usually happens when\nsocket is removed from sockmap), sk-\u003esk_prot gets restored and\nsk-\u003esk_prot-\u003esock_is_readable becomes NULL.\n\nThis makes sk_is_readable() racy, if the value of sk-\u003esk_prot is reloaded\nafter the initial check. Which in turn may lead to a null pointer\ndereference.\n\nEnsure the function pointer does not turn NULL after the check.",
"id": "GHSA-4mp8-c9w5-ff64",
"modified": "2025-12-17T18:31:31Z",
"published": "2025-07-03T09:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-38112"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1b367ba2f94251822577daed031d6b9a9e11ba91"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1e0de7582ceccbdbb227d4e0ddf65732f92526da"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/2660a544fdc0940bba15f70508a46cf9a6491230"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6fa68d7eab34d448a61aa24ea31e68b3231ed20d"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8926a7ef1977a832dd6bf702f1a99303dbf15b15"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/c2b26638476baee154920bb587fc94ff1bf04336"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/ff55c85a923e043d59d26b20a673a1b4a219c310"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
},
{
"type": "WEB",
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4MW4-QWHG-37XG
Vulnerability from github – Published: 2026-03-11 00:31 – Updated: 2026-03-11 00:31Time-of-check time-of-use race condition in the WheaERST SMM module for some Intel(R) reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
{
"affected": [],
"aliases": [
"CVE-2025-20028"
],
"database_specific": {
"cwe_ids": [
"CWE-367"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-10T23:16:41Z",
"severity": "HIGH"
},
"details": "Time-of-check time-of-use race condition in the WheaERST SMM module for some Intel(R) reference platforms may allow an escalation of privilege. System software adversary with a privileged user combined with a high complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.",
"id": "GHSA-4mw4-qwhg-37xg",
"modified": "2026-03-11T00:31:35Z",
"published": "2026-03-11T00:31:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-20028"
},
{
"type": "WEB",
"url": "https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01234.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:L/AC:H/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-4P53-C8JQ-G93H
Vulnerability from github – Published: 2023-01-11 09:30 – Updated: 2023-01-24 18:30TOCTOU in the ASP may allow a physical attacker to write beyond the buffer bounds, potentially leading to a loss of integrity or denial of service.
{
"affected": [],
"aliases": [
"CVE-2023-20523"
],
"database_specific": {
"cwe_ids": [
"CWE-367"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-01-11T08:15:00Z",
"severity": "MODERATE"
},
"details": "TOCTOU in the ASP may allow a physical attacker to write beyond the buffer bounds, potentially leading to a loss of integrity or denial of service.",
"id": "GHSA-4p53-c8jq-g93h",
"modified": "2023-01-24T18:30:33Z",
"published": "2023-01-11T09:30:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-20523"
},
{
"type": "WEB",
"url": "https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4P6C-XJ99-MXP8
Vulnerability from github – Published: 2026-07-01 18:31 – Updated: 2026-07-01 18:31NVIDIA Container Toolkit for Linux contains a vulnerability where an attacker could cause a time-of-check time-of-use race condition. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, and data tampering.
{
"affected": [],
"aliases": [
"CVE-2026-24260"
],
"database_specific": {
"cwe_ids": [
"CWE-367"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-01T16:16:45Z",
"severity": "HIGH"
},
"details": "NVIDIA Container Toolkit for Linux contains a vulnerability where an attacker could cause a time-of-check time-of-use race condition. A successful exploit of this vulnerability might lead to code execution, escalation of privileges, and data tampering.",
"id": "GHSA-4p6c-xj99-mxp8",
"modified": "2026-07-01T18:31:49Z",
"published": "2026-07-01T18:31:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24260"
},
{
"type": "WEB",
"url": "https://github.com/NVIDIA/product-security/tree/main/2026/5850"
},
{
"type": "WEB",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-24260"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PRC-VPWG-W736
Vulnerability from github – Published: 2025-03-11 15:30 – Updated: 2025-03-11 15:30APTIOV 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.
{
"affected": [],
"aliases": [
"CVE-2024-54084"
],
"database_specific": {
"cwe_ids": [
"CWE-367"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-11T14:15:22Z",
"severity": "HIGH"
},
"details": "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.",
"id": "GHSA-4prc-vpwg-w736",
"modified": "2025-03-11T15:30:59Z",
"published": "2025-03-11T15:30:59Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-54084"
},
{
"type": "WEB",
"url": "https://go.ami.com/hubfs/Security%20Advisories/2025/AMI-SA-2025003.pdf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
Mitigation
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
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
Limit the interleaving of operations on files from multiple processes.
Mitigation
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
Recheck the resource after the use call to verify that the action was taken appropriately.
Mitigation
Ensure that some environmental locking mechanism can be used to protect resources effectively.
Mitigation
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.