CVE-2026-6843: Nano: nano: format string vulnerability leads to denial of service

Overview

Severity

Medium (CVSS 5.5)

CVSS Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Exploit Status

Not Exploited

Patch Tuesday

2026-Apr

Released

2026-05-03

EPSS Score

0.02% (percentile: 5.1%)

Affected Products (2)

Other

• 20092-17086

Mariner

• azl3 nano 6.4-2 on Azure Linux 3.0

Revision History

• 2026-05-03: Information published.