What is CVE-2026-54478?

CVE-2026-54478 is a security advisory published by Microsoft Security Response Center (MSRC) with Low severity. DNS Cookie bypass when combined with proxy-protocol use

Which CVE IDs does CVE-2026-54478 cover?

CVE-2026-54478 covers the following CVE IDs: CVE-2026-54478. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-54478?

CVE-2026-54478 has a CVSS v3 base score of 3.7, published by Microsoft Security Response Center (MSRC).

CVE-2026-54478LowCVSS 3.7

DNS Cookie bypass when combined with proxy-protocol use

Vendor

Microsoft Security Response Center (MSRC)

Published

July 23, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-54478 →