CVE-2023-45199

CRITICAL 9.8CVE-2023-45199 · Published 07/10/2023 · updated 17/06/2026

In short

CVE-2023-45199 is a CRITICAL (CVSS 9.8) vulnerability affecting mbed tls (trustedfirmware).
Chance of exploitation in the next 30 days (EPSS): 1.3%, higher than 69.6% of all vulnerabilities.
Fix: update to 3.5.0 or later.

Package	Affected versions	Patched versions
mbed tls trustedfirmware	`≥ 3.2.0, < 3.5.0`	`3.5.0`

Mbed TLS 3.2.x through 3.4.x before 3.5 has a Buffer Overflow that can lead to remote Code execution.

Running one of these products? Scan your site to see whether it exposes a vulnerable version.