EUVD Vulnerability Catalog
EUVD-2026-31828
Severity: CRITICAL
Base Score: 9
CVSS Version: 3.1
Vulnerability 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.
CVSS Vector Analysis
Below is the complete, human-readable breakdown of the CVSS metric string: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
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Attack Vector (AV): Network
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Attack Complexity (AC): High
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Privileges Required (PR): None
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User Interaction (UI): None
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Scope (S): Changed
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Confidentiality Impact (C): High
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Integrity Impact (I): High
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Availability Impact (A): High
Affected Vendors & Systems
Vendor
Red Hat
References & Advisory Links
- https://access.redhat.com/errata/RHSA-2026:22644
- https://access.redhat.com/errata/RHSA-2026:22963
- https://access.redhat.com/errata/RHSA-2026:25049
- https://access.redhat.com/errata/RHSA-2026:25979
- https://access.redhat.com/errata/RHSA-2026:28053
- https://access.redhat.com/errata/RHSA-2026:28054
- https://access.redhat.com/errata/RHSA-2026:28055
- https://access.redhat.com/errata/RHSA-2026:28056
- https://access.redhat.com/errata/RHSA-2026:28057
- https://access.redhat.com/errata/RHSA-2026:28058
- https://access.redhat.com/errata/RHSA-2026:28132
- https://access.redhat.com/security/cve/CVE-2026-4480
- https://bugzilla.redhat.com/show_bug.cgi?id=2452232
- https://bugzilla.samba.org/show_bug.cgi?id=16033
Metadata Profile
Database Authority
European Union Agency for Cybersecurity (ENISA) EUVD
Assigner
redhat
EPSS Probability
13.93
Known Aliases
GHSA-hwwh-4hhw-h9jf
CVE-2026-4480
Published On
2026-05-26
Last Updated
2026-08-31