Cyber Posture

CWE · MITRE source

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

Abstraction: Base · CVEs in our corpus: 33

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: 09 May 2026 03:25 UTC

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

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-2020-81472.09.80.01122020-04-03
CVE-2020-81582.09.80.00282020-09-18
CVE-2022-258932.09.80.00502022-12-21
CVE-2018-37281.98.80.01682018-03-30
CVE-2024-555511.98.30.03172025-03-19
CVE-2018-37191.88.80.00542018-06-07
CVE-2018-37201.88.80.00432018-06-07
CVE-2018-37221.88.80.00472018-06-07
CVE-2018-37231.88.80.00432018-06-07
CVE-2020-262451.78.10.01132020-11-27
CVE-2022-218241.78.20.00342022-02-24
CVE-2020-81161.57.30.00762020-02-04
CVE-2020-152561.57.70.00162020-10-19
CVE-2020-82681.57.50.00182020-11-09
CVE-2023-29041.57.30.00162023-06-07
CVE-2024-98761.57.30.00102025-04-30
CVE-2025-331361.47.10.00212025-05-22
CVE-2018-37211.36.50.00252018-06-07
CVE-2021-371771.36.50.00102021-09-14
CVE-2023-436971.36.50.00352023-10-09
CVE-2024-345171.36.50.00212024-05-07
CVE-2020-262371.25.80.00602020-11-24
CVE-2022-23901.26.10.00042022-08-12
CVE-2024-456721.26.00.00042025-01-23
CVE-2024-577081.25.70.00572025-06-25