What is CVE-2026-42246?

CVE-2026-42246 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. net-imap vulnerable to STARTTLS stripping via invalid response timing

Which CVE IDs does CVE-2026-42246 cover?

CVE-2026-42246 covers the following CVE IDs: CVE-2026-42246. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-42246High

net-imap vulnerable to STARTTLS stripping via invalid response timing

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-42246 →