What is CVE-2026-3230?

CVE-2026-3230 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. Improper key_share validation in TLS 1.3 HelloRetryRequest

Which CVE IDs does CVE-2026-3230 cover?

CVE-2026-3230 covers the following CVE IDs: CVE-2026-3230. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-3230Low

Improper key_share validation in TLS 1.3 HelloRetryRequest

Vendor

Microsoft Security Response Center (MSRC)

Published

May 31, 2026

Last Modified

—

🔗 CVE IDs covered (1)

CVE-2026-3230 · pending