CVE-2025-27809

Mbed TLS before 2.28.10 and 3.x before 3.6.3, on the client side, accepts servers that have trusted certificates for arbitrary hostnames unless the TLS client application calls mbedtls_ssl_set_hostname.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.2 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/Mbed-TLS/mbedtls/releases	Release Notes
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-03-1/	Third Party Advisory
https://github.com/Mbed-TLS/mbedtls/issues/466	Issue Tracking
https://mastodon.social/@bagder/114219540623402700	Not Applicable

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:arm:mbed_tls::::::::
	cpe:2.3:a:arm:mbed_tls::::::::

History

No history.

Information

Published : 2025-03-25 06:15

Updated : 2025-07-17 15:57

NVD link : CVE-2025-27809

Mitre link : CVE-2025-27809

CVE.ORG link : CVE-2025-27809

JSON object : View

Products Affected

arm

mbed_tls

CWE

CWE-1188

Initialization of a Resource with an Insecure Default

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