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CVE-2026-25832 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2026-25832

CVE-2026-25832

LOW3.7

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

Published Sep 14, 2026

Modified Today

Details

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.

References

https://mbed-tls.readthedocs.io/en/latest/security-advisories/

https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-07-tls13-hrr-unadvertised-group/

https://www.cve.org/CVERecord?id=CVE-2026-25832

CVSS Analysis

CVSS v3.1

3.7

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

HighAC:H

Privileges Required

NonePR:N

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

LowI:L

Availability

NoneA:N

3.7/CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Weakness Type (CWE)

Other

Ecosystems

Timeline

PublishedSep 14, 2026

ModifiedSep 14, 2026