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CVE-2026-34875 - Vulnerability Analysis

CriticalCVSS: 9.8

Last Updated: April 1, 2026

Mbed TLS - Buffer Overflow

Published: April 1, 2026Updated: April 1, 2026Remote Exploitable

Overview

Mbed TLS through 3.6.5 and TF-PSA-Crypto 1.0.0 contain a buffer overflow caused by improper handling in public key export for FFDH keys, letting attackers cause memory corruption, exploit requires crafted input.

Severity & Score

Severity: Critical

CVSS Score: 9.8

Impact

Attackers can cause memory corruption leading to potential code execution or application crash.

Mitigation

Update to a version later than 3.6.5 or the latest available version.

References

https://mbed-tls.readthedocs.io/en/latest/security-advisories/
https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-ffdh-buffer-overflow/

Related Resources

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Details

CVE ID: CVE-2026-34875
Severity: Critical
CVSS Score: 9.8
Type: buffer_overflow
Status: new

CWE

CWE-120

CVSS Metrics

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