CVE-2026-4480— Samba 操作系统命令注入漏洞
一分钟漏洞结论
影响对象
Red Hat Red Hat Enterprise Linux 10
利用判断
存在公开或 AI PoC，应优先验证
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Samba是Samba开源的一个适用于 Linux 和 Unix 的标准 Windows 互操作性程序套件。 Samba存在操作系统命令注入漏洞，该漏洞源于将客户端控制的作业描述字符串传递给打印命令时未转义shell元字符，可能导致远程攻击者通过特制打印作业描述执行远程代码。
已观察到在野利用
github_trending · low
可能的 ATT&CK 技术 1 AI
T1059 · Command and Scripting Interpreter影响版本矩阵 21
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一、 漏洞 CVE-2026-4480 基础信息
漏洞信息
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Vulnerability Title
Samba: samba: remote code execution in printing subsystem via unescaped job description
来源: CVE Program / CVE List V5
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.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
来源: CVE Program / CVE List V5
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)
来源: CVE Program / CVE List V5
Vulnerability Title
Samba 操作系统命令注入漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Samba是Samba开源的一个适用于 Linux 和 Unix 的标准 Windows 互操作性程序套件。 Samba存在操作系统命令注入漏洞，该漏洞源于将客户端控制的作业描述字符串传递给打印命令时未转义shell元字符，可能导致远程攻击者通过特制打印作业描述执行远程代码。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | 0:4.23.5-109.el10_2 ~ * |
cpe:/o:redhat:enterprise_linux:10.2
|
|
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:4.21.3-114.el10_0.1 ~ * |
cpe:/o:redhat:enterprise_linux_eus:10.0
|
|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:4.10.16-26.el7_9.1 ~ * |
cpe:/o:redhat:enterprise_linux:7::server
|
|
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:4.10.16-26.el7_9.1 ~ * |
cpe:/o:redhat:enterprise_linux:7::server
|
|
| Red Hat | Red Hat Enterprise Linux 8 | 0:4.19.4-16.el8_10 ~ * |
cpe:/a:redhat:enterprise_linux:8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8 | 0:4.19.4-16.el8_10 ~ * |
cpe:/a:redhat:enterprise_linux:8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 0:4.13.3-12.el8_4.1 ~ * |
cpe:/o:redhat:rhel_aus:8.4::baseos
|
|
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | 0:4.13.3-12.el8_4.1 ~ * |
cpe:/o:redhat:rhel_aus:8.4::baseos
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 0:4.15.5-16.el8_6.1 ~ * |
cpe:/a:redhat:rhel_aus:8.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-On | 0:4.15.5-16.el8_6.1 ~ * |
cpe:/a:redhat:rhel_aus:8.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 0:4.17.5-7.el8_8.1 ~ * |
cpe:/a:redhat:rhel_e4s:8.8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 0:4.17.5-7.el8_8.1 ~ * |
cpe:/a:redhat:rhel_e4s:8.8::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 9 | 0:4.23.5-10.el9_8 ~ * |
cpe:/a:redhat:enterprise_linux:9::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 9 | 0:4.23.5-10.el9_8 ~ * |
cpe:/a:redhat:enterprise_linux:9::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 0:4.17.5-105.el9_2.5 ~ * |
cpe:/a:redhat:rhel_e4s:9.2::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | 0:4.19.4-105.el9_4.4 ~ * |
cpe:/a:redhat:rhel_e4s:9.4::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:4.21.3-14.el9_6.1 ~ * |
cpe:/a:redhat:rhel_eus:9.6::appstream
|
|
| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 | - |
cpe:/a:redhat:openshift:4
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 | - |
cpe:/a:redhat:openshift:4
|
|
二、漏洞 CVE-2026-4480 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | 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. | https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2026/CVE-2026-4480.yaml | POC详情 |
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CVE-2026-4480 补丁与修复 (1)
CVE-2026-4480 厂商安全公告 (3)
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🔗 2452232 – (CVE-2026-4480) CVE-2026-4480 samba: Samba: Remote Code Execution in printing subsystem via unescaped job description 查看完整文章 issue-tracking x_refsource_REDHAT
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🔗 RHSA-2026:22963 - Security Advisory - Red Hat Customer Portal 查看完整文章 vendor-advisory x_refsource_REDHAT
CVE-2026-4480 其他参考 (9)
IV. Related Vulnerabilities
V. Comments for CVE-2026-4480
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