CWE-362
Allowed-with-ReviewConcurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
Abstraction: Class · Status: Draft
The product contains a concurrent code sequence that requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence operating concurrently.
2909 vulnerabilities reference this CWE, most recent first.
GHSA-Q3GR-2743-CWM5
Vulnerability from github – Published: 2024-05-22 09:31 – Updated: 2025-09-24 15:31In the Linux kernel, the following vulnerability has been resolved:
userfaultfd: fix a race between writeprotect and exit_mmap()
A race is possible when a process exits, its VMAs are removed by exit_mmap() and at the same time userfaultfd_writeprotect() is called.
The race was detected by KASAN on a development kernel, but it appears to be possible on vanilla kernels as well.
Use mmget_not_zero() to prevent the race as done in other userfaultfd operations.
{
"affected": [],
"aliases": [
"CVE-2021-47461"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-05-22T07:15:11Z",
"severity": "MODERATE"
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\nuserfaultfd: fix a race between writeprotect and exit_mmap()\n\nA race is possible when a process exits, its VMAs are removed by\nexit_mmap() and at the same time userfaultfd_writeprotect() is called.\n\nThe race was detected by KASAN on a development kernel, but it appears\nto be possible on vanilla kernels as well.\n\nUse mmget_not_zero() to prevent the race as done in other userfaultfd\noperations.",
"id": "GHSA-q3gr-2743-cwm5",
"modified": "2025-09-24T15:31:12Z",
"published": "2024-05-22T09:31:45Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-47461"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/149958ecd0627a9f1e9c678c25c665400054cd6a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3cda4bfffd4f755645577aaa9e96a606657b4525"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cb185d5f1ebf900f4ae3bf84cee212e6dd035aca"
}
],
"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-Q3HP-2MFJ-H9CX
Vulnerability from github – Published: 2022-05-17 05:24 – Updated: 2022-05-17 05:24Multiple race conditions in Comodo Internet Security before 5.8.213334.2131 allow local users to bypass the Defense+ feature via unspecified vectors.
{
"affected": [],
"aliases": [
"CVE-2011-5118"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2012-08-26T03:17:00Z",
"severity": "LOW"
},
"details": "Multiple race conditions in Comodo Internet Security before 5.8.213334.2131 allow local users to bypass the Defense+ feature via unspecified vectors.",
"id": "GHSA-q3hp-2mfj-h9cx",
"modified": "2022-05-17T05:24:48Z",
"published": "2022-05-17T05:24:48Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2011-5118"
},
{
"type": "WEB",
"url": "http://personalfirewall.comodo.com/release_notes.html"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-Q3R5-G38V-FXH2
Vulnerability from github – Published: 2025-03-04 09:30 – Updated: 2025-03-04 09:30Multi-concurrency vulnerability in the media digital copyright protection module Impact: Successful exploitation of this vulnerability may affect availability.
{
"affected": [],
"aliases": [
"CVE-2024-58045"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-04T08:15:34Z",
"severity": "HIGH"
},
"details": "Multi-concurrency vulnerability in the media digital copyright protection module\nImpact: Successful exploitation of this vulnerability may affect availability.",
"id": "GHSA-q3r5-g38v-fxh2",
"modified": "2025-03-04T09:30:39Z",
"published": "2025-03-04T09:30:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-58045"
},
{
"type": "WEB",
"url": "https://consumer.huawei.com/en/support/bulletin/2025/3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q3VP-FJCP-C43F
Vulnerability from github – Published: 2026-06-29 21:32 – Updated: 2026-06-30 00:31A race condition was addressed with improved state handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to cause unexpected system termination.
{
"affected": [],
"aliases": [
"CVE-2026-43743"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-29T20:17:37Z",
"severity": "MODERATE"
},
"details": "A race condition was addressed with improved state handling. This issue is fixed in iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. An app may be able to cause unexpected system termination.",
"id": "GHSA-q3vp-fjcp-c43f",
"modified": "2026-06-30T00:31:30Z",
"published": "2026-06-29T21:32:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43743"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/127594"
},
{
"type": "WEB",
"url": "https://support.apple.com/en-us/127595"
}
],
"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-Q422-6CM5-MW8V
Vulnerability from github – Published: 2025-10-14 18:30 – Updated: 2025-10-14 18:30A concurrent execution using shared resource with improper synchronization ('Race Condition') vulnerability [CWE-362] in Fortinet FortiAnalyzer version 7.6.0 through 7.6.2, 7.4.0 through 7.4.6, 7.2.0 through 7.2.10 and before 7.0.13 allows an attacker to attempt to win a race condition to bypass the FortiCloud SSO authorization via crafted FortiCloud SSO requests.
{
"affected": [],
"aliases": [
"CVE-2025-54973"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-14T16:15:39Z",
"severity": "MODERATE"
},
"details": "A concurrent execution using shared resource with improper synchronization (\u0027Race Condition\u0027) vulnerability [CWE-362] in Fortinet FortiAnalyzer version 7.6.0 through 7.6.2, 7.4.0 through 7.4.6, 7.2.0 through 7.2.10 and before 7.0.13 allows an attacker to attempt to win a race condition to bypass the FortiCloud SSO authorization via crafted FortiCloud SSO requests.",
"id": "GHSA-q422-6cm5-mw8v",
"modified": "2025-10-14T18:30:27Z",
"published": "2025-10-14T18:30:27Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-54973"
},
{
"type": "WEB",
"url": "https://fortiguard.fortinet.com/psirt/FG-IR-25-198"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-Q48V-MGGJ-3532
Vulnerability from github – Published: 2024-11-12 15:30 – Updated: 2024-11-12 15:30A vulnerability has been identified in Mendix Runtime V10 (All versions < V10.16.0 only if the basic authentication mechanism is used by the application), Mendix Runtime V10.12 (All versions < V10.12.7 only if the basic authentication mechanism is used by the application), Mendix Runtime V10.6 (All versions < V10.6.15 only if the basic authentication mechanism is used by the application), Mendix Runtime V8 (All versions), Mendix Runtime V9 (All versions < V9.24.29 only if the basic authentication mechanism is used by the application). The basic authentication implementation of affected applications contains a race condition vulnerability which could allow unauthenticated remote attackers to circumvent default account lockout measures.
{
"affected": [],
"aliases": [
"CVE-2024-50313"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-12T13:15:11Z",
"severity": "MODERATE"
},
"details": "A vulnerability has been identified in Mendix Runtime V10 (All versions \u003c V10.16.0 only if the basic authentication mechanism is used by the application), Mendix Runtime V10.12 (All versions \u003c V10.12.7 only if the basic authentication mechanism is used by the application), Mendix Runtime V10.6 (All versions \u003c V10.6.15 only if the basic authentication mechanism is used by the application), Mendix Runtime V8 (All versions), Mendix Runtime V9 (All versions \u003c V9.24.29 only if the basic authentication mechanism is used by the application). The basic authentication implementation of affected applications contains a race condition vulnerability which could allow unauthenticated remote attackers to circumvent default account lockout measures.",
"id": "GHSA-q48v-mggj-3532",
"modified": "2024-11-12T15:30:43Z",
"published": "2024-11-12T15:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50313"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/html/ssa-914892.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/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-Q495-M6P3-C645
Vulnerability from github – Published: 2022-05-14 00:56 – Updated: 2022-05-14 00:56The MCollective aes_security plugin, as used in Puppet Enterprise before 3.3.0 and Mcollective before 2.5.3, does not properly validate new server certificates based on the CA certificate, which allows local users to establish unauthorized Mcollective connections via unspecified vectors related to a race condition.
{
"affected": [],
"aliases": [
"CVE-2014-3251"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2014-08-12T23:55:00Z",
"severity": "MODERATE"
},
"details": "The MCollective aes_security plugin, as used in Puppet Enterprise before 3.3.0 and Mcollective before 2.5.3, does not properly validate new server certificates based on the CA certificate, which allows local users to establish unauthorized Mcollective connections via unspecified vectors related to a race condition.",
"id": "GHSA-q495-m6p3-c645",
"modified": "2022-05-14T00:56:49Z",
"published": "2022-05-14T00:56:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2014-3251"
},
{
"type": "WEB",
"url": "http://puppetlabs.com/security/cve/cve-2014-3251"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/59356"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/60066"
},
{
"type": "WEB",
"url": "http://www.osvdb.org/109257"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-Q4F3-PJPV-9Q5X
Vulnerability from github – Published: 2022-05-24 17:43 – Updated: 2025-10-22 00:32Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
{
"affected": [],
"aliases": [
"CVE-2021-21166"
],
"database_specific": {
"cwe_ids": [
"CWE-119",
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-03-09T18:15:00Z",
"severity": "HIGH"
},
"details": "Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.",
"id": "GHSA-q4f3-pjpv-9q5x",
"modified": "2025-10-22T00:32:04Z",
"published": "2022-05-24T17:43:55Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21166"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.html"
},
{
"type": "WEB",
"url": "https://crbug.com/1177465"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBT54RKAE5XLMWSHLVUKJ7T2XHHYMXLH"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FE5SIKEVYTMDCC5OSXGOM2KRPYLHYMQX"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LCIDZ77XUDMB2EBPPWCQXPEIJERDNSNT"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BBT54RKAE5XLMWSHLVUKJ7T2XHHYMXLH"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FE5SIKEVYTMDCC5OSXGOM2KRPYLHYMQX"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/LCIDZ77XUDMB2EBPPWCQXPEIJERDNSNT"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202104-08"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21166"
},
{
"type": "WEB",
"url": "https://www.debian.org/security/2021/dsa-4886"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q4PV-PH9W-PX5V
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 18:32Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Runtime allows an unauthorized attacker to elevate privileges over a network.
{
"affected": [],
"aliases": [
"CVE-2026-50348"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T18:17:34Z",
"severity": "HIGH"
},
"details": "Concurrent execution using shared resource with improper synchronization (\u0027race condition\u0027) in Windows Runtime allows an unauthorized attacker to elevate privileges over a network.",
"id": "GHSA-q4pv-ph9w-px5v",
"modified": "2026-07-14T18:32:16Z",
"published": "2026-07-14T18:32:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50348"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50348"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-Q4Q3-5VMV-QR85
Vulnerability from github – Published: 2025-10-14 18:30 – Updated: 2025-10-14 18:30Concurrent execution using shared resource with improper synchronization ('race condition') in Windows Management Services allows an authorized attacker to elevate privileges locally.
{
"affected": [],
"aliases": [
"CVE-2025-59193"
],
"database_specific": {
"cwe_ids": [
"CWE-362"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-14T17:15:58Z",
"severity": "HIGH"
},
"details": "Concurrent execution using shared resource with improper synchronization (\u0027race condition\u0027) in Windows Management Services allows an authorized attacker to elevate privileges locally.",
"id": "GHSA-q4q3-5vmv-qr85",
"modified": "2025-10-14T18:30:33Z",
"published": "2025-10-14T18:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59193"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59193"
}
],
"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"
}
]
}
Mitigation
In languages that support it, use synchronization primitives. Only wrap these around critical code to minimize the impact on performance.
Mitigation
Use thread-safe capabilities such as the data access abstraction in Spring.
Mitigation
- Minimize the usage of shared resources in order to remove as much complexity as possible from the control flow and to reduce the likelihood of unexpected conditions occurring.
- Additionally, this will minimize the amount of synchronization necessary and may even help to reduce the likelihood of a denial of service where an attacker may be able to repeatedly trigger a critical section (CWE-400).
Mitigation
When using multithreading and operating on shared variables, only use thread-safe functions.
Mitigation
Use atomic operations on shared variables. Be wary of innocent-looking constructs such as "x++". This may appear atomic at the code layer, but it is actually non-atomic at the instruction layer, since it involves a read, followed by a computation, followed by a write.
Mitigation
Use a mutex if available, but be sure to avoid related weaknesses such as CWE-412.
Mitigation
Avoid double-checked locking (CWE-609) and other implementation errors that arise when trying to avoid the overhead of synchronization.
Mitigation
Disable interrupts or signals over critical parts of the code, but also make sure that the code does not go into a large or infinite loop.
Mitigation
Use the volatile type modifier for critical variables to avoid unexpected compiler optimization or reordering. This does not necessarily solve the synchronization problem, but it can help.
Mitigation MIT-17
Strategy: Environment Hardening
Run your code using the lowest privileges that are required to accomplish the necessary tasks [REF-76]. If possible, create isolated accounts with limited privileges that are only used for a single task. That way, a successful attack will not immediately give the attacker access to the rest of the software or its environment. For example, database applications rarely need to run as the database administrator, especially in day-to-day operations.
CAPEC-26: Leveraging Race Conditions
The adversary targets a race condition occurring when multiple processes access and manipulate the same resource concurrently, and the outcome of the execution depends on the particular order in which the access takes place. The adversary can leverage a race condition by "running the race", modifying the resource and modifying the normal execution flow. For instance, a race condition can occur while accessing a file: the adversary can trick the system by replacing the original file with their version and cause the system to read the malicious 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.