Security Resilience

CWE · MITRE source

CWE-204Observable Response Discrepancy

Abstraction: Base · CVEs in our corpus: 203

The product provides different responses to incoming requests in a way that reveals internal state information to an unauthorized actor outside of the intended control sphere.

Last updated: 16 October 2026 10:19 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: partial · 1 mapping(s) from 1 framework(s): ATT&CK 1 (partial)

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-30 Concealment and Misdirection
  • SI-11 Error Handling
  • PR.PS-06
  • IA-6 Authentication Feedback
Detect
Catch it (CSF Detect / Respond)

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Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V13.4.5

NIST 800-53 r5 controls PROPOSED for this weakness (2)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-11Error HandlingSIgraded mostly Eliminates distinguishable response discrepancies in error conditions that could be exploited for reconnaissance.
SC-30Concealment and MisdirectionSCFake or randomized responses remove distinguishable success/failure signals attackers rely on.

Top CVEs of this weakness type, ranked by Risk Priority

CVE Risk CVSS EPSS Published
CVE-2018-25350 7.39.80.00432026-05-23
CVE-2026-157476.79.10.00252026-07-14
CVE-2025-5485 6.58.60.00432025-06-12
CVE-2026-695196.48.60.01032026-08-20
CVE-2021-20049 6.17.50.01352021-12-23
CVE-2021-34580 6.07.50.01042021-10-27
CVE-2026-1112356.09.10.00002026-10-15
CVE-2025-3092 5.97.50.00472025-06-24
CVE-2026-33419 5.97.50.00542026-03-24
CVE-2025-46390 5.87.50.00312025-08-06
CVE-2025-12455 5.87.50.00312026-03-13
CVE-2026-27462 5.87.50.00432026-08-21
CVE-2026-190805.87.50.00302026-09-04
CVE-2022-41697 5.75.30.20042022-12-22
CVE-2026-600075.77.40.00552026-08-04
CVE-2026-192055.77.50.00242026-09-04
CVE-2026-4113 5.57.20.00602026-04-09
CVE-2021-38476 5.36.50.00782021-10-19
CVE-2022-39315 5.36.50.00662022-10-25
CVE-2016-9499 5.25.30.07672018-07-13
CVE-2023-46170 5.16.50.00452024-03-07
CVE-2025-61907 5.16.50.00402025-10-16
CVE-2025-66307 5.16.50.00322025-12-01
CVE-2026-34264 5.16.50.00392026-04-14
CVE-2026-86758 5.16.50.00412026-09-09