cvedb.io
CVE-2026-4159
LOW · CVSS 3.3
EPSS exploitation probability: 0%
Published 2026-03-19T22:16:42.993 · Last modified 2026-06-17T10:56:05.030

Summary

1-byte OOB heap read in wc_PKCS7_DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wc_PKCS7_DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted content. Note that PKCS7 support is disabled by default.

Affected products

wolfssl — wolfssl

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.