CVE-2025-27810
MEDIUMMbed TLS < 2.28.10 and 3.x < 3.6.3 - Authentication Bypass via Uninitialized TLS Finished Message
Title source: llmDescription
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.
References (2)
Core 2
Core References
Release Notes
https://github.com/Mbed-TLS/mbedtls/releases
Scores
CVSS v3
5.4
EPSS
0.0027
EPSS Percentile
17.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-908
Status
published
Products (2)
arm/mbed_tls
< 2.28.10
trustedfirmware/mbed_tls
3.0.0 - 3.6.3
Published
Mar 25, 2025
Tracked Since
Feb 18, 2026