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Affected Component
Analysis
wolfssl
Exploitable
Name
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.
CWEs
Published Date
Updated Date
Workaround
-
Advisories
https://github.com/wolfSSL/wolfssl/pull/9945Issue Tracking
Analysis#
Vulnerability Ratings#
1.2
CVSSv4
3.3
CVSSv31
NaN
other