CVE-2026-5778
Published: Apr 9, 2026
Modified: Apr 10, 2026
Description
Integer underflow in wolfSSL packet sniffer <= 5.9.0 allows an attacker to cause a program crash in the AEAD decryption path by injecting a TLS record shorter than the explicit IV plus authentication tag into traffic inspected by ssl_DecodePacket. The underflow wraps a 16-bit length to a large value that is passed to AEAD decryption routines, causing a large out-of-bounds read and crash. An unauthenticated attacker can trigger this remotely via malformed TLS Application Data records.
| Vendor | Product | Versions |
|---|---|---|
wolfSSL | wolfSSL | affected 0 - <= 5.9.0 |
Weaknesses (CWE)
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