CVE-2021-38597

MEDIUM 5.9CVE-2021-38597 · Published 12/08/2021 · updated 17/06/2026

In short

CVE-2021-38597 is a MEDIUM (CVSS 5.9) vulnerability affecting wolfssl (wolfssl).
Chance of exploitation in the next 30 days (EPSS): 0.48%, higher than 41.6% of all vulnerabilities.
Fix: update to 4.8.1 or later.

Package	Affected versions	Patched versions
wolfssl wolfssl	`< 4.8.1`	`4.8.1`

wolfSSL before 4.8.1 incorrectly skips OCSP verification in certain situations of irrelevant response data that contains the NoCheck extension.

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Package

Affected versions

Patched versions

< 4.8.1

4.8.1

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