What is CVE-2026-43973?

CVE-2026-43973 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. gun HTTP/1.1 response buffer has no size limit allowing server-controlled memory exhaustion

Which CVE IDs does CVE-2026-43973 cover?

CVE-2026-43973 covers the following CVE IDs: CVE-2026-43973. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-43973Medium

gun HTTP/1.1 response buffer has no size limit allowing server-controlled memory exhaustion

Vendor

Microsoft Security Response Center (MSRC)

Published

June 19, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-43973 →