CWE · MITRE source
CWE-394Unexpected Status Code or Return Value
The product does not properly check when a function or operation returns a value that is legitimate for the function, but is not expected by the product.
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: mostly · 1 mapping(s) from 1 framework(s): OWASP-Web 1 (mostly)
OWASP Top 10 for Web (2025)
This weakness contributes to A10:2025 Mishandling of Exceptional Conditions.
NIST 800-53 r5 controls that address this weakness (0)AI
| Control | Title | Family | Why it addresses this CWE |
|---|---|---|---|
| No NIST controls proposed yet. | |||
Top CVEs of this weakness type, ranked by Risk Priority
| CVE | Risk | CVSS | EPSS | Published |
|---|---|---|---|---|
CVE-2025-12515 | 7.0 | 9.8 | 0.0034 | 2025-10-30 |
CVE-2025-12516 | 7.0 | 9.8 | 0.0034 | 2025-10-30 |
CVE-2019-0066 | 5.5 | 7.5 | 0.0136 | 2019-10-09 |
CVE-2023-25948 | 5.5 | 7.5 | 0.0048 | 2023-07-13 |
CVE-2024-1713 UPD | 5.5 | 7.2 | 0.0055 | 2024-03-14 |
CVE-2025-48510 | 5.5 | 7.1 | 0.0011 | 2025-11-24 |
CVE-2026-25085 | 5.5 | 8.6 | 0.0046 | 2026-02-27 |
CVE-2018-20802 | 3.5 | 6.5 | 0.0146 | 2020-11-23 |
CVE-2019-20924 | 3.5 | 6.5 | 0.0128 | 2020-11-23 |
CVE-2022-24880 | 3.5 | 5.3 | 0.0113 | 2022-04-25 |
CVE-2023-28975 | 3.5 | 4.6 | 0.0029 | 2023-04-17 |
CVE-2023-48429 | 1.5 | 2.7 | 0.0059 | 2023-12-12 |