CWE-299Improper Check for Certificate Revocation

Abstraction: Base · CVEs in our corpus: 18

The product does not check or incorrectly checks the revocation status of a certificate, which may cause it to use a certificate that has been compromised.

An improper check for certificate revocation is a far more serious flaw than related certificate failures. This is because the use of any revoked certificate is almost certainly malicious. The most common reason for certificate revocation is compromise of the system in question, with the result that no legitimate servers will be using a revoked certificate, unless they are sorely out of sync.

Last updated: 14 October 2026 20:41 UTC

OWASP Top 10 for Web (2025)

This weakness contributes to A07:2025 Authentication Failures.

Control responseHuman-reviewed

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

Prevent

Stop it (NIST 800-53 / CSF Protect)

PR.AA-03
PR.DS-02
IA-5 Authenticator Management
SC-17 Public Key Infrastructure Certificates

Detect

Catch it (CSF Detect / Respond)

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Harden

Shrink the surface (DISA STIG)

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Validate

Prove the fix (OWASP ASVS)

V12.1.4

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-2020-1675`	6.1	8.3	0.0058	2020-10-16
`CVE-2026-61699`	6.1	8.1	0.0045	2026-09-04
`CVE-2025-3085`	6.0	8.1	0.0027	2025-04-01
`CVE-2026-4428`	5.5	7.4	0.0026	2026-03-19
`CVE-2026-56821`	5.5	7.4	0.0022	2026-07-29
`CVE-2023-23690`	5.2	7.0	0.0025	2023-01-19
`CVE-2020-16228`	4.9	6.4	0.0037	2020-09-11
`CVE-2026-73581`	4.9	6.5	0.0012	2026-09-23
`CVE-2026-93493`	4.5	5.9	0.0022	2026-09-18
`CVE-2026-6899`	4.3	5.6	0.0015	2026-06-09
`CVE-2025-36057`	4.0	5.2	0.0020	2025-07-21
`CVE-2026-94417`	4.0	5.3	0.0015	2026-09-27
`CVE-2026-102221`	3.6	4.4	0.0032	2026-10-13
`CVE-2026-93602`	3.5	4.4	0.0020	2026-09-18
`CVE-2026-86231`	3.3	3.7	0.0042	2026-09-06
`CVE-2024-56138`	3.2	4.0	0.0013	2025-01-13