In Mbed TLS 3.6.x before 3.6.7 and 4.1.x before 4.1.2, the TLS 1.3 client accepts HelloRetryRequest selecting an unadvertised group.
History

Tue, 15 Sep 2026 16:30:00 +0000

Type Values Removed Values Added
Title Mbed TLS Vulnerability Allowing Unadvertised Group During TLS 1.3 HelloRetryRequest

Mon, 14 Sep 2026 23:30:00 +0000

Type Values Removed Values Added
Title Mbed TLS TLS 1.3 Client Accepts HelloRetryRequest with Unadvertised Group

Mon, 14 Sep 2026 21:00:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 14 Sep 2026 13:00:00 +0000

Type Values Removed Values Added
Title Mbed TLS TLS 1.3 Client Accepts HelloRetryRequest with Unadvertised Group

Mon, 14 Sep 2026 08:45:00 +0000

Type Values Removed Values Added
First Time appeared Trustedfirmware
Trustedfirmware mbed Tls
Vendors & Products Trustedfirmware
Trustedfirmware mbed Tls

Mon, 14 Sep 2026 07:00:00 +0000

Type Values Removed Values Added
Description In Mbed TLS 3.6.x before 3.6.7 and 4.1.x before 4.1.2, the TLS 1.3 client accepts HelloRetryRequest selecting an unadvertised group.
Weaknesses CWE-669
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-14T00:00:00.000Z

Updated: 2026-09-14T16:00:15.430Z

Reserved: 2026-02-06T00:00:00.000Z

Link: CVE-2026-25832

cve-icon Vulnrichment

Updated: 2026-09-14T15:59:53.268Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-14T07:17:16.490

Modified: 2026-09-22T19:56:19.073

Link: CVE-2026-25832

cve-icon Redhat

No data.