Low severity3.3NVD Advisory· Published Mar 19, 2026· Updated Apr 29, 2026
CVE-2026-4159
CVE-2026-4159
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.
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
1- github.com/wolfSSL/wolfssl/pull/9945nvdIssue TrackingPatch
News mentions
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