What is CVE-2026-40556?

CVE-2026-40556 is a security advisory published by Microsoft Security Response Center (MSRC). Insecure Directory Permissions in GNU nano Leading to Privilege Abuse

Which CVE IDs does CVE-2026-40556 cover?

CVE-2026-40556 covers the following CVE IDs: CVE-2026-40556. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

CVE-2026-40556

Insecure Directory Permissions in GNU nano Leading to Privilege Abuse

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-40556 →