CVE-2026-5778

The record

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 packages

Related vulnerabilities

• CVE-2026-88833 A flaw was found in BusyBox's udhcpc DHCP client. CWE-191
• CVE-2026-44235 rabbitmq-c is a C-language AMQP client library for RabbitMQ. CWE-191
• CVE-2026-81977 Acrobat Reader is affected by an Integer Underflow (Wrap or Wraparound) vulnerability… CWE-191
• CVE-2026-66767 SAP NetWeaver Application Server for ABAP and ABAP Platform allows an unauthenticated… CWE-191
• CVE-2026-18341 IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to corrupt… CWE-191
• CVE-2026-9624 A denial-of-service security issue exists within RSLinx® Classic. CWE-191
• CVE-2026-9622 A denial-of-service security issue exists within RSLinx® Classic. CWE-191
• CVE-2026-82480 A security flaw has been discovered in NASA cFS up to 7.0.1. CWE-191