Description
An issue was discovered in Mbed TLS 3.5.0 through 4.0.0. Client impersonation can occur while resuming a TLS 1.3 session.
Scores
CVSS v3
9.1
EPSS
0.0004
EPSS Percentile
12.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
total
Details
CWE
CWE-287
Status
published
Products (1)
arm/mbed_tls
3.5.0 - 3.6.6
Published
Apr 01, 2026
Tracked Since
Apr 02, 2026