critical9.8
CVE-2026-34877
An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0.
Impact
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.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Arm | Mbed Tls | from 2.19.0 before 3.6.6 |
| Trustedfirmware | Mbed Tls | Version 4.0.0 |