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Microsoft Security Response CenterCVE-2026-6843

Nano: nano: format string vulnerability leads to denial of service

MediumVendor CVSS 5.5 / 10 1 CVE Published May 3, 2026 at 1:02 AM UTC

Summary

Mariner

Products covered

  • cbl2 nano 6.0-3 on CBL Mariner 2.0

  • azl3 nano 6.4-3 on Azure Linux 3.0

  • cbl2 nano 6.0-3 on CBL-Mariner 2.0

  • azl3 nano 6.4-2 on Azure Linux 3.0

Remediation

CBL-Mariner Releases Release Notes

Vendor-listed fixes

  • 6.4-3

CVEs in this advisory 1

Updates

  1. Published by Microsoft Security Response Center

    The publication date reported by the vendor.

  2. Updated by Microsoft Security Response Center

    The vendor changed the advisory after it was first published.

  3. Added to SecurityAlert

    We collected the advisory from the official source.

  4. Confirmed at the source

    Our collector saw this advisory during a later source check.