Cyber Resilience

CWE · MITRE source

CWE-471Modification of Assumed-Immutable Data (MAID)

Abstraction: Base · CVEs in our corpus: 37

The product does not properly protect an assumed-immutable element from being modified by an attacker.

This occurs when a particular input is critical enough to the functioning of the application that it should not be modifiable at all, but it is. Certain resources are often assumed to be immutable when they are not, such as hidden form fields in web applications, cookies, and reverse DNS lookups.

Last updated: 22 August 2026 14:14 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 · 6 mapping(s) from 2 framework(s): CAPEC 5 (partial) · STIG windows 10 1 (mostly)

See the full cumulative-coverage rollup →

Control responseHuman-reviewed

Answering this weakness across the control lifecycle, from our framework cross-walks.

Prevent
Stop it (NIST 800-53 / CSF Protect)
  • SC-33 Transmission Preparation Integrity
  • PR.AA-05
  • PR.DS-01
  • PR.DS-10
Detect
Catch it (CSF Detect / Respond)

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Harden
Shrink the surface (DISA STIG)
  • 1 hardening rule · 1 OS baseline
Validate
Prove the fix (OWASP ASVS)

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NIST 800-53 r5 controls that address this weakness (1)AI-assisted

Control Title Family Why it addresses this CWE
SC-33Transmission Preparation IntegritySCChecksums and integrity protection during transformation/packing detect unauthorized modification of data assumed to be immutable before it is transmitted.

Top CVEs of this weakness type, ranked by Risk Priority

CVE Risk CVSS EPSS Published
CVE-2020-8147 7.89.80.03152020-04-03
CVE-2020-8158 7.79.80.02122020-09-18
CVE-2022-25893 7.69.80.01432022-12-21
CVE-2022-21824 7.58.20.21512022-02-24
CVE-2018-3728 7.18.80.04152018-03-30
CVE-2026-504817.09.90.00462026-08-07
CVE-2018-3719 6.98.80.02122018-06-07
CVE-2018-3720 6.98.80.02022018-06-07
CVE-2018-3722 6.98.80.02042018-06-07
CVE-2018-3723 6.98.80.02042018-06-07
CVE-2020-8116 6.27.30.03082020-02-04
CVE-2020-15256 6.27.70.01552020-10-19
CVE-2020-26245 6.28.10.01952020-11-27
CVE-2020-8268 6.17.50.01292020-11-09
CVE-2024-55551 6.08.30.00632025-03-19
CVE-2023-2904 5.77.30.00562023-06-07
CVE-2018-3721 5.56.50.02412018-06-07
CVE-2024-9876 5.57.30.00272025-04-30
CVE-2025-33136 5.47.10.00312025-05-22
CVE-2026-44798 5.47.10.00282026-05-28
CVE-2023-43697 5.36.50.00652023-10-09
CVE-2021-37177 5.16.50.00392021-09-14
CVE-2024-34517 5.16.50.00632024-05-07
CVE-2024-57708 4.85.70.00902025-06-25
CVE-2020-26237 4.75.80.01322020-11-24