CVE-2026-6412

mediumCVSS 4.3covered by 2 sourcesfirst seen 2026-06-09

Certificate policy and RFC 8446 compliance concerns regarding the continued acceptance of SHA-1/MD5 in certificate processing.

CSIRTS triage

Other

What: The vulnerability involves the continued acceptance of SHA-1/MD5 digests in certificate processing.
Who is affected: Deployments using affected certificate processing methods.
Urgency: Remediation is medium urgency due to the potential for exploitation in certain contexts.
Action: Review and update certificate processing methods to avoid SHA-1/MD5 digests.

AI-assisted analysis generated from the source advisory — verify against the original.

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Low exploitation risk0.07% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 0% of all EPSS-scored CVEs.

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