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Vulnerability DatabaseCVE-2026-3549
CVE-2026-3549:
wolfSSL vulnerability analysis and mitigation
Heap Overflow in TLS 1.3 ECH parsing. An integer underflow existed in ECH extension parsing logic when calculating a buffer length, which resulted in writing beyond the bounds of an allocated buffer. Note that in wolfSSL, ECH is off by default, and the ECH standard is still evolving.
Source: NVD
Related wolfSSL vulnerabilities:
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