CVE-2025-27810 – Mbed TLS Uninitialized Stack Memory Authentication Bypass

The following table lists the changes that have been made to the
CVE-2025-27810 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by [email protected]

    Mar. 25, 2025

    Action Type Old Value New Value
    Added 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.
    Added CVSS V3.1 AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
    Added CWE CWE-908
    Added Reference https://github.com/Mbed-TLS/mbedtls/releases
    Added Reference https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2025-03-2/
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