Common Weakness Enumeration
CWE-820
AllowedMissing Synchronization
Abstraction: Base · Status: Incomplete
The product utilizes a shared resource in a concurrent manner but does not attempt to synchronize access to the resource.
29 vulnerabilities reference this CWE, most recent first.
CVE-2026-57029 (GCVE-0-2026-57029)
Vulnerability from cvelistv5 – Published: 2026-07-09 21:12 – Updated: 2026-07-10 14:45
VLAI
EPSS
VEX
Title
Junos OS Evolved: QFX Series: When sFlow collector reachability changes evo-pfemand process can crash
Summary
A Missing Synchronization vulnerability in the flow collector handler of Juniper Networks Junos OS Evolved on QFX Series allows an adjacent, unauthenticated attacker to cause a Denial-of-Service (DoS).
When the reachability of an sFlow collector changes, the corresponding next-hop entry is updated. If this update occurs simultaneously with the sFlow thread accessing the next-hop data (which is outside the attackers control), it causes the evo-pfemand process to crash, impacting all traffic forwarding until the automatic process restart has completed.
This issue affects Junos OS Evolved on QFX Series:
* all 23.2 versions,
* 23.4 versions before 23.4R2-S7-EVO,
* 24.2 versions before 24.2R2-S5-EVO,
* 24.4 versions before 24.4R2-S3-EVO,
* 25.2 versions before 25.2R2-EVO.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-820 - Missing Synchronization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://supportportal.juniper.net/JSA110089 | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS Evolved |
Affected:
0 , < 23.4R2-S7-EVO
(custom)
Affected: 24.2 , < 24.2R2-S5-EVO (custom) Affected: 24.4 , < 24.4R2-S3-EVO (custom) Affected: 25.2 , < 25.2R2-EVO (custom) |
Date Public
2026-07-08 16:00
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CVE-2026-44318 (GCVE-0-2026-44318)
Vulnerability from cvelistv5 – Published: 2026-05-27 15:35 – Updated: 2026-05-27 17:35
VLAI
EPSS
VEX
Title
free5GC: BSF concurrent PUT /nbsf-management/v1/subscriptions/{subId} crashes the BSF process via concurrent map read/write on Subscriptions
Summary
free5GC is an open-source implementation of the 5G core network. Prior to 4.2.2, free5GC's BSF PUT /nbsf-management/v1/subscriptions/{subId} handler has an unsynchronized write on the global Subscriptions map. The handler first reads the map under RLock() via BSFContext.GetSubscription(subId), but if the subscription does not exist, ReplaceIndividualSubcription() writes back to the same map directly without taking the mutex (bsfContext.BsfSelf.Subscriptions[subId] = subscription). Under concurrent authenticated PUT load, one goroutine can read while another writes the map, which causes the Go runtime to abort the process with fatal error: concurrent map read and map write (Go runtime panics that come from concurrent map access bypass recover() and terminate the process). The BSF container exits with code 2 -- the entire BSF SBI surface goes down until restart. This vulnerability is fixed in 4.2.2.
Severity
6.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/free5gc/free5gc/security/advis… | x_refsource_CONFIRM |
| https://github.com/free5gc/free5gc/issues/926 | x_refsource_MISC |
| https://github.com/free5gc/bsf/pull/7 | x_refsource_MISC |
| https://github.com/free5gc/bsf/commit/277908565fd… | x_refsource_MISC |
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CVE-2026-22163 (GCVE-0-2026-22163)
Vulnerability from cvelistv5 – Published: 2026-03-20 22:52 – Updated: 2026-03-23 14:59
VLAI
EPSS
VEX
Title
GPU DDK - Unsafe writing of MMU PT entries on systems with 32-bit host CPU
Summary
Requires malware code to misuse the DDK kernel module IOCTL interface.
Such code can use the interface in an unsupported way that allows subversion of the GPU to perform writes to arbitrary physical memory pages.
The product utilises a shared resource in a concurrent manner but does not attempt to synchronise access to the resource.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-820 - Missing Synchronization (4.19)
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Imagination Technologies | Graphics DDK |
Affected:
1.17 RTM
(custom)
Affected: 1.18 RTM (custom) Affected: 23.2 RTM (custom) Affected: 24.1 RTM , ≤ 24.2 RTM (custom) Affected: 25.1 RTM , ≤ 25.3 RTM (custom) Unaffected: 26.1 RTM (custom) |
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CVE-2025-49751 (GCVE-0-2025-49751)
Vulnerability from cvelistv5 – Published: 2025-08-12 17:09 – Updated: 2026-02-13 18:53
VLAI
EPSS
VEX
Title
Windows Hyper-V Denial of Service Vulnerability
Summary
Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-820 - Missing Synchronization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
16 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.8330
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.7678
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.6216
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.6216
(custom)
|
|
| Microsoft | Windows 11 version 22H2 |
Affected:
10.0.22621.0 , < 10.0.22621.5768
(custom)
|
|
| Microsoft | Windows 11 version 22H3 |
Affected:
10.0.22631.0 , < 10.0.22631.5768
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.5768
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.4946
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.8330
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.8330
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.7678
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.7678
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.4052
(custom)
|
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
Affected:
10.0.25398.0 , < 10.0.25398.1791
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.4946
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.4946
(custom)
|
Date Public
2025-08-12 07:00
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CVE-2025-47999 (GCVE-0-2025-47999)
Vulnerability from cvelistv5 – Published: 2025-07-08 16:58 – Updated: 2026-02-13 19:07
VLAI
EPSS
VEX
Title
Windows Hyper-V Denial of Service Vulnerability
Summary
Missing synchronization in Windows Hyper-V allows an authorized attacker to deny service over an adjacent network.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-820 - Missing Synchronization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
16 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1607 |
Affected:
10.0.14393.0 , < 10.0.14393.8246
(custom)
|
|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.7558
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19044.0 , < 10.0.19044.6093
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.6093
(custom)
|
|
| Microsoft | Windows 11 version 22H2 |
Affected:
10.0.22621.0 , < 10.0.22621.5624
(custom)
|
|
| Microsoft | Windows 11 version 22H3 |
Affected:
10.0.22631.0 , < 10.0.22631.5624
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.5624
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.4652
(custom)
|
|
| Microsoft | Windows Server 2016 |
Affected:
10.0.14393.0 , < 10.0.14393.8246
(custom)
|
|
| Microsoft | Windows Server 2016 (Server Core installation) |
Affected:
10.0.14393.0 , < 10.0.14393.8246
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.7558
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.7558
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.3932
(custom)
|
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
Affected:
10.0.25398.0 , < 10.0.25398.1732
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.4652
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.4652
(custom)
|
Date Public
2025-07-08 07:00
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CVE-2025-47154 (GCVE-0-2025-47154)
Vulnerability from cvelistv5 – Published: 2025-05-01 00:00 – Updated: 2025-05-01 15:33 Disputed
VLAI
EPSS
VEX
Summary
LibJS in Ladybird before f5a6704 mishandles the freeing of the vector that arguments_list references, leading to a use-after-free, and allowing remote attackers to execute arbitrary code via a crafted .js file. NOTE: the GitHub README says "Ladybird is in a pre-alpha state, and only suitable for use by developers."
Severity
9 (Critical)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-820 - Missing Synchronization
Assigner
References
Impacted products
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CVE-2025-1445 (GCVE-0-2025-1445)
Vulnerability from cvelistv5 – Published: 2025-03-25 12:38 – Updated: 2025-03-25 13:09
VLAI
EPSS
VEX
Summary
A vulnerability exists in RTU IEC 61850 client and server functionality that could impact the availability if renegotiation of an open IEC61850 TLS connection takes place in specific timing situations, when IEC61850 communication is active.
Precondition is that IEC61850 as client or server are configured using TLS on RTU500 device. It affects the CMU the IEC61850 stack is configured on.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-820 - Missing Synchronization
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Hitachi Energy | RTU500 |
Affected:
13.7.1 , ≤ 13.7.4
(custom)
Unaffected: 13.7.6 (custom) |
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CVE-2024-49114 (GCVE-0-2024-49114)
Vulnerability from cvelistv5 – Published: 2024-12-10 17:49 – Updated: 2026-06-09 18:30
VLAI
EPSS
VEX
Title
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
Summary
Windows Cloud Files Mini Filter Driver Elevation of Privilege Vulnerability
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-820 - Missing Synchronization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerabi… | vendor-advisorypatch |
Impacted products
13 products
| Vendor | Product | Version | |
|---|---|---|---|
| Microsoft | Windows 10 Version 1809 |
Affected:
10.0.17763.0 , < 10.0.17763.6659
(custom)
|
|
| Microsoft | Windows 10 Version 21H2 |
Affected:
10.0.19043.0 , < 10.0.19044.5247
(custom)
|
|
| Microsoft | Windows 10 Version 22H2 |
Affected:
10.0.19045.0 , < 10.0.19045.5247
(custom)
|
|
| Microsoft | Windows 11 version 22H2 |
Affected:
10.0.22621.0 , < 10.0.22621.4602
(custom)
|
|
| Microsoft | Windows 11 version 22H3 |
Affected:
10.0.22631.0 , < 10.0.22631.4602
(custom)
|
|
| Microsoft | Windows 11 Version 23H2 |
Affected:
10.0.22631.0 , < 10.0.22631.4602
(custom)
|
|
| Microsoft | Windows 11 Version 24H2 |
Affected:
10.0.26100.0 , < 10.0.26100.2605
(custom)
|
|
| Microsoft | Windows Server 2019 |
Affected:
10.0.17763.0 , < 10.0.17763.6659
(custom)
|
|
| Microsoft | Windows Server 2019 (Server Core installation) |
Affected:
10.0.17763.0 , < 10.0.17763.6659
(custom)
|
|
| Microsoft | Windows Server 2022 |
Affected:
10.0.20348.0 , < 10.0.20348.2966
(custom)
|
|
| Microsoft | Windows Server 2022, 23H2 Edition (Server Core installation) |
Affected:
10.0.25398.0 , < 10.0.25398.1308
(custom)
|
|
| Microsoft | Windows Server 2025 |
Affected:
10.0.26100.0 , < 10.0.26100.2605
(custom)
|
|
| Microsoft | Windows Server 2025 (Server Core installation) |
Affected:
10.0.26100.0 , < 10.0.26100.2605
(custom)
|
Date Public
2024-12-10 08:00
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CVE-2024-30387 (GCVE-0-2024-30387)
Vulnerability from cvelistv5 – Published: 2024-04-12 15:20 – Updated: 2024-08-02 01:32
VLAI
EPSS
VEX
Title
Junos OS: ACX5448 & ACX710: Due to interface flaps the PFE process can crash
Summary
A Missing Synchronization vulnerability in the Packet Forwarding Engine (PFE) of Juniper Networks Junos OS on ACX5448 and ACX710 allows an unauthenticated, adjacent attacker to cause a Denial-of-Service (DoS).
If an interface flaps while the system gathers statistics on that interface, two processes simultaneously access a shared resource which leads to a PFE crash and restart.
This issue affects Junos OS:
* All versions before 20.4R3-S9,
* 21.2 versions before 21.2R3-S5,
* 21.3 versions before 21.3R3-S5,
* 21.4 versions before 21.4R3-S4,
* 22.1 versions before 22.1R3-S2,
* 22.2 versions before 22.2R3-S2,
* 22.3 versions before 22.3R2-S2, 22.3R3,
* 22.4 versions before 22.4R2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-820 - Missing Synchronization
- Denial-of-Service (DoS)
Assigner
References
2 references
| URL | Tags |
|---|---|
| http://supportportal.juniper.net/JSA79187 | vendor-advisory |
| https://www.first.org/cvss/calculator/4.0#CVSS:4.… | technical-description |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Juniper Networks | Junos OS |
Affected:
0 , < 20.4R3-S9
(semver)
Affected: 21.2 , < 21.2R3-S5 (semver) Affected: 21.3 , < 21.3R3-S5 (semver) Affected: 21.4 , < 21.4R3-S4 (semver) Affected: 22.1 , < 22.1R3-S2 (semver) Affected: 22.2 , < 22.2R3-S2 (semver) Affected: 22.3 , < 22.3R2-S2, 22.3R3 (semver) Affected: 22.4 , < 22.4R2, 22.4R3 (semver) |
Date Public
2024-04-10 16:00
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CVE-2023-45084 (GCVE-0-2023-45084)
Vulnerability from cvelistv5 – Published: 2023-12-05 16:15 – Updated: 2024-12-02 17:07
VLAI
EPSS
VEX
Title
Media caddy removal and reinsertion without reboot may cause data loss
Summary
An issue exists in SoftIron HyperCloud where drive caddy removal and reinsertion without a reboot may erroneously cause the system to recognize the caddy as new media and wipe all data on the drives due to a missing synchronization flaw, which impacts data availability and integrity.
This issue only impacts SoftIron HyperCloud "density" storage nodes running HyperCloud software versions 1.0 to before 2.0.3.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-820 - Missing Synchronization
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://advisories.softiron.cloud |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SoftIron | HyperCloud |
Affected:
1.0 , < 2.0.3
(semver)
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"references": [
{
"url": "https://advisories.softiron.cloud"
}
],
"source": {
"discovery": "INTERNAL"
},
"title": "Media caddy removal and reinsertion without reboot may cause data loss",
"x_generator": {
"engine": "Vulnogram 0.1.0-dev"
}
}
},
"cveMetadata": {
"assignerOrgId": "0a72a055-908d-47f5-a16a-1f09049c16c6",
"assignerShortName": "SoftIron",
"cveId": "CVE-2023-45084",
"datePublished": "2023-12-05T16:15:31.559Z",
"dateReserved": "2023-10-03T19:37:55.180Z",
"dateUpdated": "2024-12-02T17:07:48.362Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.