CVE-2026-55961

highCVSS 7.5covered by 1 sourcefirst seen 2026-06-09

CSIRTS triage

What: The wolfSSL_PKCS7_verify() function incorrectly reports success for degenerate PKCS#7 data that contains no signer.
Who is affected: Deployments of wolfSSL that utilize the PKCS7 verification function.
Urgency: Remediation is urgent due to the high severity rating, indicating potential security risks.
Action: Update to the latest version of wolfSSL that addresses this issue.

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

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Low exploitation risk0.10% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 1% of all EPSS-scored CVEs.

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