CVE-2026-4159 (GCVE-0-2026-4159)

Vulnerability from cvelistv5 – Published: 2026-03-19 21:17 – Updated: 2026-03-20 16:29
VLAI
Title
wc_PKCS7_DecodeEnvelopedData 1 byte out-of-bounds read
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.
Severity
1.2 (Low)
CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/U:Green
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-20 16:28 UTC
CWE
Assigner
References
Impacted products
Vendor Product Version CPE status
wolfSSL wolfSSL Affected: 0 , < 5.9.0 (semver)
guessed Create a notification for this product.
Credits
Haruto Kimura (Stella)
Show details on NVD website
To clipboard 

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