CVE-2025-15569Hinoki check available

Local code execution via unrestricted DLL search

Published Feb 10, 2026 · Updated Feb 10, 2026

DLL search-path hijacking in Artifex Software MuPDF 1.26.0 and 1.26.1 on Windows allows local users to execute code. The get_system_dpi function in platform/x11/win_main.c loads user32.dll without limiting resolution to the system directory, so Windows can select an attacker-controlled DLL from a user-writable download directory. Exploitation requires low-privileged local access and control of a searched directory; the loaded code runs with the MuPDF process's permissions.

CVSS severity7.3
High
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

DLL search-path hijacking in Artifex Software MuPDF 1.26.0 and 1.26.1 on Windows allows local users to execute code. The get_system_dpi function in platform/x11/win_main.c loads user32.dll without limiting resolution to the system directory, so Windows can select an attacker-controlled DLL from a user-writable download directory. Exploitation requires low-privileged local access and control of a searched directory; the loaded code runs with the MuPDF process's permissions.

The record

CVE
CVE-2025-15569
Published
Feb 10, 2026
Updated
Feb 10, 2026
Vendor
Artifex Software, Inc.
Product
MuPDF
Classifications
CWE-427, CWE-426, T1574.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Feb 10, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.26.0
  2. Affected versionversion=1.26.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Artifex Software, Inc. · MuPDFversion=1.26.0; version=1.26.1

Published CVSS scores

7.0VulDBCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
6.0VulDBAV:L/AC:H/Au:S/C:C/I:C/A:C
7.3VulDBCVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-427Uncontrolled Search Path Element
CWE-426Untrusted Search Path
T1574.001Hijack Execution Flow: DLL

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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