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CVE-2026-19547— Local Privilege Escalation in Ghostscript for Windows

Quick assessment

Affected
Artifex Software Inc. Ghostscript
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Windows 版本的 Ghostscript 存在一个通过 PostScript 资源文件劫持实现的本地权限提升漏洞。由于该应用会在 Windows 默认安装环境中不存在的、可预测的 C:\gs\ 路径下搜索 PostScript 资源文件，而 Windows 默认 ACL（访问控制列表）允许任何经过身份验证的用户在 C:\ 根目录下创建目录，因此，经过身份验证的本地攻击者可以创建预期的目录结构并植入恶意的 PostScript 文件。当任何用户或服务随后运行 Ghostscript 时，植入的文件会被自动加载，

CVSS 7.0 · High

Possible ATT&CK Techniques 1 AI

T1574.002
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I. Basic Information for CVE-2026-19547

Vulnerability Information
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Vulnerability Title
Local Privilege Escalation in Ghostscript for Windows
Source: CVE Program / CVE List V5
Vulnerability Description
Ghostscript for Windows is vulnerable to local privilege escalation through PostScript resource file hijacking. Due to the application searching for PostScript resource files in predictable paths under C:\\gs\\ that do not exist by default on Windows installations, combined with Windows default ACLs allowing any authenticated user to create directories at the root of C:\\, an attacker who is an authenticated local user can create the expected directory structure and plant a malicious PostScript file. When any user or service subsequently runs Ghostscript, the planted file is automatically loaded and executed with the full privileges of the Ghostscript process. This results in full compromise of Ghostscript process context, as well as running arbitrary code on the machine with Ghostscript process privileges. This issue was fixed in version 10.08.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:P/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
不可信的搜索路径
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
Artifex Software Inc. Ghostscript 0 ~ 10.08.0 -

II. Public POCs for CVE-2026-19547

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III. Intelligence Information for CVE-2026-19547

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Security Blog Posts for CVE-2026-19547 (1)

Other References for CVE-2026-19547 (2)

IV. Related Vulnerabilities

Same product: Ghostscript
Same vendor: Artifex Software Inc.
Same weakness: CWE-426

V. Comments for CVE-2026-19547

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