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CVE-2026-4480

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CVE-2026-4480

Published: May 26, 2026

Modified: Jun 3, 2026

PUBLISHED

CVSS v3.1

9.0

CRITICAL

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.

VendorProductVersions

Red Hat

Red Hat Enterprise Linux 10

unaffected
0:4.23.5-109.el10_2 - < *

Red Hat

Red Hat Enterprise Linux 8

unaffected
0:4.19.4-16.el8_10 - < *

Red Hat

Red Hat Enterprise Linux 8

unaffected
0:4.19.4-16.el8_10 - < *

Red Hat

Red Hat Enterprise Linux 6

All versions

Red Hat

Red Hat Enterprise Linux 6

All versions

Red Hat

Red Hat Enterprise Linux 7

All versions

Red Hat

Red Hat Enterprise Linux 9

All versions

Red Hat

Red Hat OpenShift Container Platform 4

All versions

Weaknesses (CWE)

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

High

Availability

High

References

RHSA-2026:22644
vendor-advisory
x_refsource_REDHAT
RHSA-2026:22963
vendor-advisory
x_refsource_REDHAT
RHBZ#2452232
issue-tracking
x_refsource_REDHAT

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