CVE-2026-34877
CRITICAL
NVD
CVSS Score
9.8
Severity
CRITICAL
Published
Apr 02, 2026
Vendor
unknown
Description
An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0. Insufficient protection of serialized SSL context or session structures allows an attacker who can modify the serialized structures to induce memory corruption, leading to arbitrary code execution. This is caused by Incorrect Use of Privileged APIs.