CWE-567

Unsynchronized Access to Shared Data in a Multithreaded Context

The product does not properly synchronize shared data, such as static variables across threads, which can lead to undefined behavior and unpredictable data changes.

CVE-2020-25724 (GCVE-0-2020-25724)
Vulnerability from cvelistv5
Published
2021-05-26 20:52
Modified
2024-08-04 15:40
Severity ?
CWE
Summary
A flaw was found in RESTEasy, where an incorrect response to an HTTP request is provided. This flaw allows an attacker to gain access to privileged information. The highest threat from this vulnerability is to confidentiality and integrity. Versions before resteasy 2.0.0.Alpha3 are affected.
Impacted products
Vendor Product Version
n/a resteasy Version: resteasy 2.0.0.Alpha3
Show details on NVD website


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CVE-2023-44374 (GCVE-0-2023-44374)
Vulnerability from cvelistv5
Published
2023-11-14 11:04
Modified
2026-02-25 16:51
CWE
  • CWE-567 - Unsynchronized Access to Shared Data in a Multithreaded Context
Summary
A vulnerability has been identified in RUGGEDCOM RM1224 LTE(4G) EU (6GK6108-4AM00-2BA2) (All versions < V8.0), RUGGEDCOM RM1224 LTE(4G) NAM (6GK6108-4AM00-2DA2) (All versions < V8.0), SCALANCE M804PB (6GK5804-0AP00-2AA2) (All versions < V8.0), SCALANCE M812-1 ADSL-Router (6GK5812-1AA00-2AA2) (All versions < V8.0), SCALANCE M812-1 ADSL-Router (6GK5812-1BA00-2AA2) (All versions < V8.0), SCALANCE M816-1 ADSL-Router (6GK5816-1AA00-2AA2) (All versions < V8.0), SCALANCE M816-1 ADSL-Router (6GK5816-1BA00-2AA2) (All versions < V8.0), SCALANCE M826-2 SHDSL-Router (6GK5826-2AB00-2AB2) (All versions < V8.0), SCALANCE M874-2 (6GK5874-2AA00-2AA2) (All versions < V8.0), SCALANCE M874-3 (6GK5874-3AA00-2AA2) (All versions < V8.0), SCALANCE M876-3 (ROK) (6GK5876-3AA02-2EA2) (All versions < V8.0), SCALANCE M876-4 (6GK5876-4AA10-2BA2) (All versions < V8.0), SCALANCE M876-4 (EU) (6GK5876-4AA00-2BA2) (All versions < V8.0), SCALANCE M876-4 (NAM) (6GK5876-4AA00-2DA2) (All versions < V8.0), SCALANCE MUM853-1 (EU) (6GK5853-2EA00-2DA1) (All versions < V8.0), SCALANCE MUM856-1 (EU) (6GK5856-2EA00-3DA1) (All versions < V8.0), SCALANCE MUM856-1 (RoW) (6GK5856-2EA00-3AA1) (All versions < V8.0), SCALANCE S615 EEC LAN-Router (6GK5615-0AA01-2AA2) (All versions < V8.0), SCALANCE S615 LAN-Router (6GK5615-0AA00-2AA2) (All versions < V8.0), SCALANCE WAB762-1 (6GK5762-1AJ00-6AA0) (All versions < V3.0.0), SCALANCE WAM763-1 (6GK5763-1AL00-7DA0) (All versions < V3.0.0), SCALANCE WAM763-1 (ME) (6GK5763-1AL00-7DC0) (All versions < V3.0.0), SCALANCE WAM763-1 (US) (6GK5763-1AL00-7DB0) (All versions < V3.0.0), SCALANCE WAM766-1 (6GK5766-1GE00-7DA0) (All versions < V3.0.0), SCALANCE WAM766-1 (ME) (6GK5766-1GE00-7DC0) (All versions < V3.0.0), SCALANCE WAM766-1 (US) (6GK5766-1GE00-7DB0) (All versions < V3.0.0), SCALANCE WAM766-1 EEC (6GK5766-1GE00-7TA0) (All versions < V3.0.0), SCALANCE WAM766-1 EEC (ME) (6GK5766-1GE00-7TC0) (All versions < V3.0.0), SCALANCE WAM766-1 EEC (US) (6GK5766-1GE00-7TB0) (All versions < V3.0.0), SCALANCE WUB762-1 (6GK5762-1AJ00-1AA0) (All versions < V3.0.0), SCALANCE WUB762-1 iFeatures (6GK5762-1AJ00-2AA0) (All versions < V3.0.0), SCALANCE WUM763-1 (6GK5763-1AL00-3AA0) (All versions < V3.0.0), SCALANCE WUM763-1 (6GK5763-1AL00-3DA0) (All versions < V3.0.0), SCALANCE WUM763-1 (US) (6GK5763-1AL00-3AB0) (All versions < V3.0.0), SCALANCE WUM763-1 (US) (6GK5763-1AL00-3DB0) (All versions < V3.0.0), SCALANCE WUM766-1 (6GK5766-1GE00-3DA0) (All versions < V3.0.0), SCALANCE WUM766-1 (ME) (6GK5766-1GE00-3DC0) (All versions < V3.0.0), SCALANCE WUM766-1 (USA) (6GK5766-1GE00-3DB0) (All versions < V3.0.0). Affected devices allow to change the password, but insufficiently check which password is to be changed. With this an authenticated attacker could, under certain conditions, be able to change the password of another, potential admin user, which could allow to escalate privileges.
Impacted products
Vendor Product Version
Siemens RUGGEDCOM RM1224 LTE(4G) EU Version: 0   < V8.0
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   Siemens RUGGEDCOM RM1224 LTE(4G) NAM Version: 0   < V8.0
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   Siemens SCALANCE M804PB Version: 0   < V8.0
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   Siemens SCALANCE M812-1 ADSL-Router Version: 0   < V8.0
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   Siemens SCALANCE M812-1 ADSL-Router Version: 0   < V8.0
Create a notification for this product.
   Siemens SCALANCE M816-1 ADSL-Router Version: 0   < V8.0
Create a notification for this product.
   Siemens SCALANCE M816-1 ADSL-Router Version: 0   < V8.0
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   Siemens SCALANCE M826-2 SHDSL-Router Version: 0   < V8.0
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   Siemens SCALANCE M874-2 Version: 0   < V8.0
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   Siemens SCALANCE M874-3 Version: 0   < V8.0
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   Siemens SCALANCE M876-3 (ROK) Version: 0   < V8.0
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   Siemens SCALANCE M876-4 Version: 0   < V8.0
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   Siemens SCALANCE M876-4 (EU) Version: 0   < V8.0
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   Siemens SCALANCE M876-4 (NAM) Version: 0   < V8.0
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   Siemens SCALANCE MUM853-1 (EU) Version: 0   < V8.0
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   Siemens SCALANCE MUM856-1 (EU) Version: 0   < V8.0
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   Siemens SCALANCE MUM856-1 (RoW) Version: 0   < V8.0
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   Siemens SCALANCE S615 EEC LAN-Router Version: 0   < V8.0
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   Siemens SCALANCE S615 LAN-Router Version: 0   < V8.0
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   Siemens SCALANCE WAB762-1 Version: 0   < V3.0.0
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   Siemens SCALANCE WAM763-1 Version: 0   < V3.0.0
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   Siemens SCALANCE WAM763-1 (ME) Version: 0   < V3.0.0
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   Siemens SCALANCE WAM763-1 (US) Version: 0   < V3.0.0
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   Siemens SCALANCE WAM766-1 Version: 0   < V3.0.0
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   Siemens SCALANCE WAM766-1 (ME) Version: 0   < V3.0.0
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   Siemens SCALANCE WAM766-1 (US) Version: 0   < V3.0.0
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   Siemens SCALANCE WAM766-1 EEC Version: 0   < V3.0.0
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   Siemens SCALANCE WAM766-1 EEC (ME) Version: 0   < V3.0.0
Create a notification for this product.
   Siemens SCALANCE WAM766-1 EEC (US) Version: 0   < V3.0.0
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   Siemens SCALANCE WUB762-1 Version: 0   < V3.0.0
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   Siemens SCALANCE WUB762-1 iFeatures Version: 0   < V3.0.0
Create a notification for this product.
   Siemens SCALANCE WUM763-1 Version: 0   < V3.0.0
Create a notification for this product.
   Siemens SCALANCE WUM763-1 Version: 0   < V3.0.0
Create a notification for this product.
   Siemens SCALANCE WUM763-1 (US) Version: 0   < V3.0.0
Create a notification for this product.
   Siemens SCALANCE WUM763-1 (US) Version: 0   < V3.0.0
Create a notification for this product.
   Siemens SCALANCE WUM766-1 Version: 0   < V3.0.0
Create a notification for this product.
   Siemens SCALANCE WUM766-1 (ME) Version: 0   < V3.0.0
Create a notification for this product.
   Siemens SCALANCE WUM766-1 (USA) Version: 0   < V3.0.0
Create a notification for this product.
Show details on NVD website


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CVE-2025-48908 (GCVE-0-2025-48908)
Vulnerability from cvelistv5
Published
2025-06-06 06:51
Modified
2025-06-09 13:17
CWE
  • CWE-567 - Unsynchronized Access to Shared Data in a Multithreaded Context
Summary
Ability Auto Startup service vulnerability in the foundation process Impact: Successful exploitation of this vulnerability may affect availability.
Impacted products
Vendor Product Version
Huawei HarmonyOS Version: 5.0.0
Create a notification for this product.
Show details on NVD website


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CVE-2026-46693 (GCVE-0-2026-46693)
Vulnerability from cvelistv5
Published
2026-06-10 21:47
Modified
2026-06-11 13:12
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
  • CWE-567 - Unsynchronized Access to Shared Data in a Multithreaded Context
Summary
ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, an attacker who can connect to a magick -distribute-cache service can hijack a file descriptor in the server process when a race condition is met. This issue has been patched in versions 6.9.13-48 and 7.1.2-23.
Impacted products
Vendor Product Version
ImageMagick ImageMagick Version: < 6.9.13-48
Version: < 7.1.2-23
Create a notification for this product.
Show details on NVD website


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CVE-2026-48708 (GCVE-0-2026-48708)
Vulnerability from cvelistv5
Published
2026-06-15 19:59
Modified
2026-06-24 16:45
CWE
  • CWE-362 - Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
  • CWE-567 - Unsynchronized Access to Shared Data in a Multithreaded Context
Summary
OliveTin gives access to predefined shell commands from a web interface. In versions 3000.0.0 and prior, the template engine uses a single shared text/template.Template instance (tpl package-level variable in service/internal/tpl/templates.go) across all goroutines. Every action execution calls tpl.Parse(source) followed by t.Execute() on this shared instance with no synchronization. When two or more actions execute concurrently (which is the normal case — each ExecRequest spawns a goroutine), a race condition occurs: one goroutine's Parse overwrites the template tree while another goroutine is calling Execute, causing cross-user command contamination, Go runtime panic, and incorrect command execution. This issue has been resolved in version 3000.13.0.
Impacted products
Vendor Product Version
OliveTin OliveTin Version: < 3000.13.0
Create a notification for this product.
Show details on NVD website


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CVE-2026-73631 (GCVE-0-2026-73631)
Vulnerability from cvelistv5
Published
2026-08-15 10:38
Modified
2026-08-17 12:42
Severity ?
CWE
  • CWE-567 - Unsynchronized Access to Shared Data in a Multithreaded Context
Summary
Exposure of data element to wrong session vulnerability in the JSON plugin of Apache Struts. Per-request parsing state could be shared across concurrent requests, allowing data associated with one request to become observable in another, and configured parsing limits not to be enforced as intended. Populating actions from a JSON request body is not enabled by default; applications that do not use the JSON plugin are not affected. This issue affects Apache Struts: 7.2.1. Users are recommended to upgrade to version 7.3.0, which fixes the issue.
References
Impacted products
Show details on NVD website


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CVE-2026-73632 (GCVE-0-2026-73632)
Vulnerability from cvelistv5
Published
2026-08-15 10:38
Modified
2026-08-17 12:40
Severity ?
CWE
  • CWE-567 - Unsynchronized Access to Shared Data in a Multithreaded Context
Summary
Exposure of data element to wrong session vulnerability in the JSON plugin of Apache Struts. Per-response serialization state could be shared across concurrent requests, allowing response content associated with one request to become observable in another. Only the SMD / JSON-RPC handling of the JSON interceptor is affected, which is not enabled by default; applications using the json result type are not affected. This issue affects Apache Struts: 7.2.1. Users are recommended to upgrade to version 7.3.0, which fixes the issue.
References
Impacted products
Show details on NVD website


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Mitigation

Phase: Implementation

Description:

  • Remove the use of static variables used between servlets. If this cannot be avoided, use synchronized access for these variables.
CAPEC-25: Forced Deadlock

The adversary triggers and exploits a deadlock condition in the target software to cause a denial of service. A deadlock can occur when two or more competing actions are waiting for each other to finish, and thus neither ever does. Deadlock conditions can be difficult to detect.

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