What is CVE-2026-34871?

CVE-2026-34871 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. An issue was discovered in Mbed TLS before 3.6.6 and 4.x before 4.1.0 and TF-PSA-Crypto before 1.1.0. There is a Predictable Seed in a Pseudo-Random Number Generator (PRNG).

Which CVE IDs does CVE-2026-34871 cover?

CVE-2026-34871 covers the following CVE IDs: CVE-2026-34871. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-34871?

CVE-2026-34871 has a CVSS v3 base score of 6.7, published by Microsoft Security Response Center (MSRC).

CVE-2026-34871MediumCVSS 6.7

An issue was discovered in Mbed TLS before 3.6.6 and 4.x before 4.1.0 and TF-PSA-Crypto before 1.1.0. There is a Predictable Seed in a Pseudo-Random Number Generator (PRNG).

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-34871 →