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CRITICAL

CVE-2026-4480

CVSS v3

9

CRITICAL

EPSS Score

13.9 %

exploit probability, as of 2026-10-05

CISA KEV

No

known exploited

Exploitation

—

SSVC status

Description

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.

Technical details

Published
2026-05-26
Last Modified
2026-07-24

Frequently asked questions

What is CVE-2026-4480?

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.

Is CVE-2026-4480 actively exploited?

Active exploitation of CVE-2026-4480 has not been confirmed. Its EPSS score was 13.9% on 2026-10-05, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2026-4480?

CVE-2026-4480 has a CVSS v3 base score of 9 (CRITICAL severity).

Is CVE-2026-4480 affecting your environment?

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