What is CVE-2026-50721?

CVE-2026-50721 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payload

Which CVE IDs does CVE-2026-50721 cover?

CVE-2026-50721 covers the following CVE IDs: CVE-2026-50721. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-50721?

CVE-2026-50721 has a CVSS v3 base score of 8.1, published by Microsoft Security Response Center (MSRC).

CVE-2026-50721HighCVSS 8.1

IKEv1 Denial of Service via RSA-SHA1 (PKCS#1 Version 1.5 Encrypted) authentication payload

Vendor

Microsoft Security Response Center (MSRC)

Published

July 7, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-50721 →