CVE-2025-27810

State: Published
Severity: 5.4 Medium
Published: Mar 25, 2025
Updated: Mar 25, 2025
Reserved: Mar 7, 2025

Description

Mbed TLS before 2.28.10 and 3.x before 3.6.3, in some cases of failed memory allocation or hardware errors, uses uninitialized stack memory to compose the TLS Finished message, potentially leading to authentication bypasses such as replays.

Scores

CVSS	Score	Vector	Source
3.1	5.4 Medium	CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N	mitre

Weaknesses

CWE-908 Use of Uninitialized Resource

Affected Products

Product	Versions
mbedtlsMbed	before 2.28.10Affected 3.0.0 to before 3.6.3Affected

References

https://github.com/Mbed-TLS/mbedtls/releases
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-03-2/

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