MEDIUM 5.5 Microsoft
CVE-2026-6843
Nano: nano: format string vulnerability leads to denial of service
Microsoft Security Update 2026-Apr: Nano: nano: format string vulnerability leads to denial of service
Affected Products
- cbl2 nano 6.0-3 on CBL Mariner 2.0
- azl3 nano 6.4-3 on Azure Linux 3.0
- azl3 nano 6.4-2 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-6843
- https://nvd.nist.gov/vuln/detail/CVE-2026-6843
This medium severity vulnerability with a CVSS score of 5.5 was published on 2026-04-14 via Microsoft. Affected: cbl2 nano 6.0-3 on CBL Mariner 2.0, azl3 nano 6.4-3 on Azure Linux 3.0, azl3 nano 6.4-2 on Azure Linux 3.0.
vulnfeed aggregates 9044 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.