CVEDB API

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.

Exploit prediction scoring system (EPSS) score

EPSS Score 0.0

EPSS Ranking 12.2%

CVSS Severity

CVSS v3 Score 9.1

References

Products affected by CVE-2026-34873

Trustedfirmware » Mbed Tls » Version: 3.5.0

cpe:2.3:a:trustedfirmware:mbed_tls:3.5.0
Trustedfirmware » Mbed Tls » Version: 3.5.1

cpe:2.3:a:trustedfirmware:mbed_tls:3.5.1
Trustedfirmware » Mbed Tls » Version: 3.5.2

cpe:2.3:a:trustedfirmware:mbed_tls:3.5.2
Trustedfirmware » Mbed Tls » Version: 3.6.0

cpe:2.3:a:trustedfirmware:mbed_tls:3.6.0
Trustedfirmware » Mbed Tls » Version: 3.6.1

cpe:2.3:a:trustedfirmware:mbed_tls:3.6.1
Trustedfirmware » Mbed Tls » Version: 3.6.2

cpe:2.3:a:trustedfirmware:mbed_tls:3.6.2
Trustedfirmware » Mbed Tls » Version: 3.6.3

cpe:2.3:a:trustedfirmware:mbed_tls:3.6.3
Trustedfirmware » Mbed Tls » Version: 3.6.4

cpe:2.3:a:trustedfirmware:mbed_tls:3.6.4
Trustedfirmware » Mbed Tls » Version: 3.6.5

cpe:2.3:a:trustedfirmware:mbed_tls:3.6.5
Trustedfirmware » Mbed Tls » Version: 4.0.0

cpe:2.3:a:trustedfirmware:mbed_tls:4.0.0