CWE · MITRE source
CWE-124Buffer Underwrite ('Buffer Underflow')
The product writes to a buffer using an index or pointer that references a memory location prior to the beginning of the buffer.
Last updated: 15 October 2026 14:21 UTC
Control responseHuman-reviewed
Answering this weakness across the control lifecycle, from our framework cross-walks.
Prevent
Stop it (NIST 800-53 / CSF Protect)
PR.PS-06ID.RA-01SA-11Developer Testing and EvaluationPR.PS-02
Detect
Catch it (CSF Detect / Respond)
—
Harden
Shrink the surface (DISA STIG)
—
Validate
Prove the fix (OWASP ASVS)
V1.4.1
NIST 800-53 r5 controls PROPOSED for this weakness (0)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 |
|---|---|---|---|
| No NIST controls proposed yet. | |||
Top CVEs of this weakness type, ranked by Risk Priority
| CVE | Risk | CVSS | EPSS | Published |
|---|---|---|---|---|
CVE-2015-2426 KEV UPD | 9.2 | 8.8 | 0.8658 | 2015-07-20 |
CVE-2023-25610 UPD | 8.5 | 9.8 | 0.1833 | 2025-03-24 |
CVE-2018-15361 UPD | 7.8 | 9.8 | 0.0288 | 2019-03-05 |
CVE-2026-44631 UPD | 7.4 | 9.8 | 0.0075 | 2026-06-08 |
CVE-2026-16439 UPD | 6.8 | 9.1 | 0.0043 | 2026-07-21 |
CVE-2026-97008 | 6.7 | 8.8 | 0.0072 | 2026-10-13 |
CVE-2021-38575 UPD | 6.5 | 8.1 | 0.0199 | 2021-12-01 |
CVE-2022-20683 UPD | 6.5 | 8.6 | 0.0149 | 2022-04-15 |
CVE-2021-36064 UPD | 6.3 | 7.8 | 0.0270 | 2021-09-01 |
CVE-2026-0966 UPD | 6.3 | 8.2 | 0.0058 | 2026-03-26 |
CVE-2026-34253 UPD | 6.3 | 8.2 | 0.0067 | 2026-05-15 |
CVE-2025-62786 | 6.2 | 8.1 | 0.0073 | 2025-10-29 |
CVE-2023-34351 UPD | 6.0 | 7.5 | 0.0073 | 2024-02-14 |
CVE-2025-27439 UPD | 6.0 | 8.5 | 0.0044 | 2025-03-11 |
CVE-2025-27440 UPD | 6.0 | 8.5 | 0.0045 | 2025-03-11 |
CVE-2022-33896 UPD | 5.9 | 7.8 | 0.0053 | 2022-10-07 |
CVE-2025-53101 UPD | 5.9 | 7.4 | 0.0095 | 2025-07-14 |
CVE-2024-52990 UPD | 5.8 | 7.8 | 0.0043 | 2024-12-10 |
CVE-2026-16179 | 5.8 | 7.5 | 0.0032 | 2026-10-08 |
CVE-2018-5388 UPD | 5.7 | 6.5 | 0.0392 | 2018-05-31 |
CVE-2026-5089 UPD | 5.7 | 7.3 | 0.0042 | 2026-05-12 |
CVE-2025-61690 UPD | 5.6 | 7.8 | 0.0014 | 2025-10-02 |
CVE-2021-38578 UPD | 5.5 | 7.4 | 0.0102 | 2022-03-03 |
CVE-2023-32614 UPD | 5.5 | 7.0 | 0.0083 | 2023-09-25 |
CVE-2026-41499 | 5.1 | 6.5 | 0.0044 | 2026-04-29 |