What is CVE-2026-66034?

CVE-2026-66034 is a security advisory published by Microsoft Security Response Center (MSRC). libssh2 Heap Out-of-Bounds Read via publickey subsystem

Which CVE IDs does CVE-2026-66034 cover?

CVE-2026-66034 covers the following CVE IDs: CVE-2026-66034. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-66034 has a CVSS v3 base score of 7.5, published by Microsoft Security Response Center (MSRC).

CVE-2026-66034CVSS 7.5

Vendor

Published

July 27, 2026

Last Modified

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