CVE-2026-5447
Heap buffer overflow in CertFromX509() via AuthorityKeyIdentifier
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
9th
Heap buffer overflow in CertFromX509 via AuthorityKeyIdentifier size confusion. A heap buffer overflow occurs when converting an X.509 certificate internally due to incorrect size handling of the AuthorityKeyIdentifier extension.
| CWE | CWE-122 |
| Vendor | wolfssl |
| Product | wolfssl |
| Published | Apr 9, 2026 |
| Last Updated | Apr 10, 2026 |
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Affected Versions
wolfSSL / wolfSSL
0 < 5.9.1
Credits
Calif.io in collaboration with Claude and Anthropic Research