CVE-2024-28755

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. 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.

6.5 /10

CVSS v3 : MEDIUM

V3 Legend

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
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
First Time Arm
Arm mbed Tls

21 Nov 2024, 09:06

Type Values Removed Values Added
References () https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0 - () https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0 -
References () https://github.com/hey3e - () https://github.com/hey3e -
References () https://hey3e.github.io - () https://hey3e.github.io -
References () https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/ - () https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/ -

06 Sep 2024, 20:35

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 6.5
CWE CWE-326

03 Apr 2024, 12:38

Type Values Removed Values Added
Summary
  • (es) Se descubrió un problema en Mbed TLS 3.5.x anterior a 3.6.0. Cuando se restableció un contexto SSL con la API mbedtls_ssl_session_reset(), la versión máxima de TLS a negociar no se restauró a la configurada. Un atacante pudo evitar que un servidor Mbed TLS estableciera cualquier conexión TLS 1.3, lo que podría provocar una denegación de servicio o una degradación forzada de la versión de TLS 1.3 a TLS 1.2.

03 Apr 2024, 03:15

Type Values Removed Values Added
New CVE
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