CVE-2023-52353

HIGH

Mbed TLS < 3.5.2 - Session Fixation via TLS Version Mishandling

Title source: llm

Description

An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum negotiable TLS version is mishandled. For example, if the last connection negotiated TLS 1.2, then 1.2 becomes the new maximum.

References (1)

Core 1

Core References

Exploit, Issue Tracking, Patch

https://github.com/Mbed-TLS/mbedtls/issues/8654

Scores

CVSS v3 7.5

EPSS 0.0047

EPSS Percentile 36.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CISA SSVC

Vulnrichment

Exploitation poc

Automatable yes

Technical Impact partial

Details

CWE

CWE-384

Status published

Products (1)

arm/mbed_tls < 3.5.2

Published Jan 21, 2024

Tracked Since Feb 18, 2026