CVE-2026-34875

EUVD-2026-17993
An issue was discovered in Mbed TLS through 3.6.5 and TF-PSA-Crypto 1.0.0. A buffer overflow can occur in public key export for FFDH keys.
Classic Buffer Overflow
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
9.8 CRITICAL
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: 17%
Affected Products (NVD)
VendorProductVersion
armmbed_tls
3.5.0 ≤
𝑥
< 3.6.6
armtf-psa-crypto
𝑥
< 1.1.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
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/