CVE-2024-28755

An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When an SSL context was reset with the mbedtls_ssl_session_reset() API, the maximum TLS version to be negotiated was not restored to the configured one. An attacker was able to prevent an Mbed TLS server from establishing any TLS 1.3 connection, potentially resulting in a Denial of Service or forced version downgrade from TLS 1.3 to TLS 1.2.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0	Release Notes
https://github.com/hey3e	Not Applicable
https://hey3e.github.io	Not Applicable
https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/	Vendor Advisory
https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0	Release Notes
https://github.com/hey3e	Not Applicable
https://hey3e.github.io	Not Applicable
https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:arm:mbed_tls:*:*:*:*:*:*:*:*

History

10 Jun 2025, 00:41

Type	Values Removed	Values Added
First Time		Arm Arm mbed Tls
CPE		cpe:2.3:a:arm:mbed_tls::::::::
References	~~() https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0 -~~	() https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0 - Release Notes
References	~~() https://github.com/hey3e -~~	() https://github.com/hey3e - Not Applicable
References	~~() https://hey3e.github.io -~~	() https://hey3e.github.io - Not Applicable
References	~~() https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/ -~~	() https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/ - Vendor Advisory

Information

Published : 2024-04-03 03:15

Updated : 2025-06-10 00:41

NVD link : CVE-2024-28755

Mitre link : CVE-2024-28755

CVE.ORG link : CVE-2024-28755

JSON object : View

Products Affected

arm

mbed_tls

CWE

CWE-326

Inadequate Encryption Strength

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