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
CWE
Assigner
References
Impacted products
Vendor Product Version
wolfSSL wolfSSL Affected: 0 , < 5.9.0 (semver)
Create a notification for this product.
Credits
Haruto Kimura (Stella)
Show details on NVD website
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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
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