PT-2026-34312 · Nano+2 · Nano+2

Published 2026-04-22 · Updated 2026-06-04 · CVE-2026-6843

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions nano (affected versions not specified)

Description A local user can cause a Denial of Service in the application by exploiting a format string flaw in the statusline() function. This occurs when the application attempts to display a directory name containing printf specifiers, resulting in a segmentation fault (SEGV), which is an error that occurs when a program attempts to access a memory location that it is not allowed to access.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Use of Externally-Controlled Format String

Weakness Enumeration

CWE-134

Related Identifiers

CVE-2026-6843

OESA-2026-2160

OPENSUSE-SU-2026:10851-1

USN-8386-1

Affected Products

Linuxmint

Ubuntu

Nano

References · 23

• https://ubuntu.com/security/notices/USN-8386-1 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-6842 · Vendor Advisory
• https://osv.dev/vulnerability/OESA-2026-2160 · Vendor Advisory
• https://ubuntu.com/security/CVE-2026-6843 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-6843 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2026-6843 · Vendor Advisory
• https://osv.dev/vulnerability/USN-8386-1 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-6842 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2026-6843 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2026-6843 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2026-6843 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2026:10851-1 · Vendor Advisory
• https://twitter.com/windowsforum/status/2062099944954097872 · Twitter Post
• https://openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-2160 · Note
• https://bugzilla.redhat.com/show_bug.cgi?id=2460017 · Note