CWE · MITRE source
CWE-820Missing Synchronization
The product utilizes a shared resource in a concurrent manner but does not attempt to synchronize access to the resource.
If access to a shared resource is not synchronized, then the resource may not be in a state that is expected by the product. This might lead to unexpected or insecure behaviors, especially if an attacker can influence the shared resource.
Last updated: 04 July 2026 08:17 UTC
Cumulative inbound coverage
How completely the frameworks we cross-walk collectively cover this — the verdict is the strongest single mapping (overlapping partials are not summed); breadth shows the corroboration behind it.
Collective: partial · 1 mapping(s) from 1 framework(s): ATT&CK 1 (partial)
NIST 800-53 r5 controls that address this weakness (0)AI
| Control | Title | Family | Why it addresses this CWE |
|---|---|---|---|
| No NIST controls proposed yet. | |||
MITRE ATT&CK techniques this weakness enables
Our own two-way CWE↔ATT&CK cross-walk — a direct mapping with no public source (the CWE→CAPEC→ATT&CK chain leaves most top weaknesses, incl. XSS and SQLi, mapped to nothing). Drafted by Grok and spot-checked by Claude Opus 4.8.
Direction: ← other covers this;
→ this covers other (F/M/P = full / mostly /
partial).
Top CVEs of this weakness type, ranked by Risk Priority
| CVE | Risk | CVSS | EPSS | Published |
|---|---|---|---|---|
CVE-2025-47154 UPD | 7.0 | 9.0 | 0.0059 | 2025-05-01 |
CVE-2023-2801 | 5.5 | 7.5 | 0.0075 | 2023-06-06 |
CVE-2023-45084 | 5.5 | 7.0 | 0.0022 | 2023-12-05 |
CVE-2024-49114 | 5.5 | 7.8 | 0.0073 | 2024-12-12 |
CVE-2025-1445 | 5.5 | 7.5 | 0.0031 | 2025-03-25 |
CVE-2022-50238 | 5.5 | 7.4 | 0.0022 | 2025-09-08 |
CVE-2026-22163 | 5.5 | 7.8 | 0.0008 | 2026-03-20 |
CVE-2026-53153 | 5.5 | 7.8 | 0.0010 | 2026-06-25 |
CVE-2026-53277 | 5.5 | 8.8 | 0.0011 | 2026-06-25 |
CVE-2024-30387 | 3.5 | 6.5 | 0.0021 | 2024-04-12 |
CVE-2025-47999 UPD | 3.5 | 6.8 | 0.0037 | 2025-07-08 |
CVE-2025-49751 UPD | 3.5 | 6.8 | 0.0043 | 2025-08-12 |
CVE-2026-44318 UPD | 3.5 | 6.5 | 0.0027 | 2026-05-27 |