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CVE-2026-4480— Samba: samba: remote code execution in printing subsystem via unescaped job description

CVSS 8.5 · High

Possible ATT&CK Techniques 1AI

T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-4480

Vulnerability Information
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Vulnerability Title
Samba: samba: remote code execution in printing subsystem via unescaped job description
Source: NVD (National Vulnerability Database)
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
OS命令中使用的特殊元素转义处理不恰当(OS命令注入)
Source: NVD (National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Red HatRed Hat Enterprise Linux 10-cpe:/o:redhat:enterprise_linux:10
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 9-cpe:/o:redhat:enterprise_linux:9
Red HatRed Hat OpenShift Container Platform 4-cpe:/a:redhat:openshift:4

II. Public POCs for CVE-2026-4480

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III. Intelligence Information for CVE-2026-4480

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Patches & Fixes for CVE-2026-4480 (1)

Vendor Advisories for CVE-2026-4480 (1)

Other References for CVE-2026-4480 (1)

Same Patch Batch · Red Hat · 2026-05-26 · 7 CVEs total

CVE-2026-73749.9 CRITICALKubevirt: kubevirt virt-handler: privilege escalation and node compromise via symlink foll
CVE-2026-420138.2 HIGHGnutls: gnutls: certificate validation bypass due to oversized subject alternative name
CVE-2026-52608.2 HIGHGnutls: gnutls: information disclosure via heap overread in rsa key exchange
CVE-2026-488647.8 HIGHLibsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of mali
CVE-2026-420127.1 HIGHGnutls: gnutls: certificate validation bypass due to improper handling of uri and srv sans
CVE-2026-420155.3 MEDIUMGnutls: gnutls: memory corruption due to off-by-one error in pkcs#12 bag handling

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-78

V. Comments for CVE-2026-4480

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