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CVE-2026-4159
Published: Mar 19, 2026
Modified: Mar 20, 2026
PUBLISHED
Description
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.
| Vendor | Product | Versions |
|---|---|---|
wolfSSL | wolfSSL | affected 0 - < 5.9.0 |
Weaknesses (CWE)
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