OpenSSL Fixes High-Severity DTLS Flaw That Can Leak Heap Memory Unencrypted

September 30, 2026
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OpenSSL Fixes High-Severity DTLS Flaw That Can Leak Heap Memory Unencrypted

A High-severity OpenSSL flaw can leak heap memory to the other side of a DTLS connection or crash the program, OpenSSL said on September 29 as it released fixes.

DTLS, the TLS variant used for UDP traffic, resends a handshake message if no reply arrives before the timer expires. The leak or crash can happen when such a resend starts while a larger handshake message is stuck part-way

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OpenSSL Fixes High-Severity DTLS Flaw That Can Leak Heap Memory Unencrypted

OpenSSL Fixes High-Severity DTLS Flaw That Can Leak Heap Memory Unencrypted

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