CWE · MITRE source
CWE-440Expected Behavior Violation
A feature, API, or function does not perform according to its specification.
Last updated: 15 October 2026 14:21 UTC
Control responseHuman-reviewed
Answering this weakness across the control lifecycle, from our framework cross-walks.
NIST 800-53 r5 controls PROPOSED for this weakness (1)AI-assisted
These are model PROPOSALS, not graded mappings. They come
from controls_to_cwe_proposals, which carries no grade field at
all; across the CWE pages 1,540 of 1,722 such associations (89%) have never
been graded by anything. The heading said “address” until
2026-09-29, which asserted a relationship the data does not carry.
Graded cross-walks are on the framework map, not here.
| Control | Title | Family | Why it addresses this CWE |
|---|---|---|---|
SI-6 | Security and Privacy Function Verification | SI | graded mostly Verification of security function operation directly detects deviations from expected behavior. |
Top CVEs of this weakness type, ranked by Risk Priority
| CVE | Risk | CVSS | EPSS | Published |
|---|---|---|---|---|
CVE-2021-41035 UPD | 7.6 | 9.8 | 0.0182 | 2021-10-25 |
CVE-2019-6569 UPD | 7.1 | 9.1 | 0.0133 | 2019-03-26 |
CVE-2026-93675 | 6.7 | 8.8 | 0.0075 | 2026-10-07 |
CVE-2025-8850 UPD | 6.5 | 8.8 | 0.0041 | 2025-10-30 |
CVE-2018-12550 UPD | 6.4 | 8.1 | 0.0135 | 2019-03-27 |
CVE-2024-32971 UPD | 6.4 | 9.0 | 0.0073 | 2024-05-02 |
CVE-2023-4807 UPD | 6.2 | 7.8 | 0.0158 | 2023-09-08 |
CVE-2019-5108 UPD | 6.0 | 6.5 | 0.1011 | 2019-12-23 |
CVE-2022-3281 UPD | 6.0 | 7.5 | 0.0079 | 2022-10-17 |
CVE-2024-30246 UPD | 5.9 | 7.6 | 0.0062 | 2024-03-29 |
CVE-2026-97687 UPD | 5.9 | 8.1 | 0.0021 | 2026-09-29 |
CVE-2023-32731 UPD | 5.7 | 7.4 | 0.0050 | 2023-06-09 |
CVE-2023-6129 UPD | 5.5 | 6.5 | 0.0232 | 2024-01-09 |
CVE-2019-5061 UPD | 5.3 | 6.5 | 0.0092 | 2019-12-12 |
CVE-2023-2088 UPD | 5.3 | 6.5 | 0.0120 | 2023-05-12 |
CVE-2019-5062 UPD | 5.2 | 6.5 | 0.0057 | 2019-12-12 |
CVE-2025-6211 UPD | 5.1 | 6.5 | 0.0036 | 2025-07-10 |
CVE-2026-42752 | 5.1 | 6.5 | 0.0031 | 2026-06-15 |
CVE-2025-52953 UPD | 5.0 | 6.5 | 0.0033 | 2025-07-11 |
CVE-2026-42534 UPD | 4.6 | 5.3 | 0.0072 | 2026-05-20 |
CVE-2023-32732 UPD | 4.5 | 5.3 | 0.0053 | 2023-06-09 |
CVE-2024-47762 UPD | 4.5 | 5.8 | 0.0037 | 2024-10-03 |
CVE-2026-35040 UPD | 4.5 | 5.3 | 0.0063 | 2026-04-09 |
CVE-2020-10766 UPD | 4.4 | 5.5 | 0.0047 | 2020-09-15 |
CVE-2020-10767 UPD | 4.4 | 5.5 | 0.0039 | 2020-09-15 |