cvedb.io
CVE-2026-5778
MEDIUM · CVSS 6.5
EPSS exploitation probability: 0%
Published 2026-04-09T22:16:37.097 · Last modified 2026-06-17T10:59:37.930

Summary

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.

Affected products

wolfssl — wolfssl

Does this affect you?

Add your gear to cvedb and we'll alert you only when wolfssl ships something exploited.

Check my exposure →

References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.