Description
In Mbed TLS 3.3.0 through 3.5.2 before 3.6.0, a malicious client can cause information disclosure or a denial of service because of a stack buffer over-read (of less than 256 bytes) in a TLS 1.3 server via a TLS 3.1 ClientHello.
References (2)
Core 2
Core References
Release Notes
https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0
Scores
CVSS v3
9.1
EPSS
0.0035
EPSS Percentile
57.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-121
Status
published
Products (1)
arm/mbed_tls
3.3.0 - 3.6.0
Published
Apr 03, 2024
Tracked Since
Feb 18, 2026