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Weakness (CWE) CWE-121 Stack-based Buffer Overflow 1

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TI-2026-28984 CVE-2026-40170

ngtcp2 has a qlog transport parameter serialization stack buffer overflow

Priority HIGH 72

ngtcp2 is a C implementation of the IETF QUIC protocol.

CVSS 3.1HIGH 7.5· Network · No auth · No interaction · EPSS 0.00776 · Published 2026-04-16 · Fixed in 1.22.1 CWE-121

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