CVE-2026-1005

LOW

Integer underflow leads to out-of-bounds access in sniffer AES-GCM/CCM/ARIA-GCM decrypt path

Title source: cna

Description

Integer underflow in wolfSSL packet sniffer <= 5.8.4 allows an attacker to cause a buffer overflow 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 heap buffer overflow and a crash. An unauthenticated attacker can trigger this remotely via malformed TLS Application Data records.

Scores

CVSS v4 2.1
EPSS 0.0010
EPSS Percentile 26.8%
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Details

CWE
CWE-191
Status published
Products (1)
wolfSSL/wolfSSL < 5.8.4
Published Mar 19, 2026
Tracked Since Mar 19, 2026