CVE-2026-4480
Samba: samba: remote code execution in printing subsystem via unescaped job description
- Published
- May 26, 2026
- Updated
- Sep 1, 2026
- Assigning CNA
- redhat
- Evidence observed
- Aug 8, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HModerate · next 30 days
- Percentile
- 96.5%
- Model date
- Oct 17, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
A flaw was found in the Samba printing subsystem. Samba passes the client-controlled job description string to the command configured with the "print command" setting via the "%J" substitution character without escaping shell meta characters. A remote attacker could exploit this vulnerability by sending a specially crafted print job description that contains unescaped shell characters. This could lead to remote code execution on the affected system.
Sources
javascript/cves/2026/CVE-2026-4480.yaml
Nuclei TemplatesDeclared conditions
- verification: dsl,word($.matchers[*].type)
- CVE-2026-4480Informational
CVE-2026-4480
Responsible use
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