What is CVE-2026-6390?

CVE-2026-6390 is a security advisory published by Microsoft Security Response Center (MSRC) with Medium severity. Nano: gnu nano: arbitrary memory writes, information disclosure, or denial of service via format string vulnerability in error handling.

Which CVE IDs does CVE-2026-6390 cover?

CVE-2026-6390 covers the following CVE IDs: CVE-2026-6390. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-6390?

CVE-2026-6390 has a CVSS v3 base score of 6.8, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-6390?

CVE-2026-6390 affects 1 product, including: azl3 nano 6.4-3 on Azure Linux 3.0.

CVE-2026-6390MediumCVSS 6.8

Nano: gnu nano: arbitrary memory writes, information disclosure, or denial of service via format string vulnerability in error handling.

Vendor

Microsoft Security Response Center (MSRC)

Published

July 27, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-6390 →

🎯 Affected products1

azl3 nano 6.4-3 on Azure Linux 3.0

🔗 References (1)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-6390