CVE-2025-54065
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-12-03

Last updated on: 2025-12-04

Assigner: GitHub, Inc.

Description
GZDoom is a feature centric port for all Doom engine games. GZDoom is an open source Doom engine. In versions 4.14.2 and earlier, ZScript actor state handling allows scripts to read arbitrary addresses, write constants into the JIT-compiled code section, and redirect control flow through crafted FState and VMFunction structures. A script can copy FState structures into a writable buffer, modify function pointers and state transitions, and cause execution of attacker-controlled bytecode, leading to arbitrary code execution.
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Meta Information
Published
2025-12-03
Last Modified
2025-12-04
Generated
2026-06-16
AI Q&A
2025-12-03
EPSS Evaluated
2026-06-15
NVD
CVE-2025-54065
EUVD
EUVD-2025-201101
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
zdoom gzdoom 4.14.2
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-913 The product does not properly restrict reading from or writing to dynamically-managed code resources such as variables, objects, classes, attributes, functions, or executable instructions or statements.
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Executive Summary

This vulnerability in GZDoom versions 4.14.2 and earlier involves the ZScript actor state handling, which allows malicious scripts to read arbitrary memory addresses, write constants into the JIT-compiled code section, and redirect control flow by manipulating crafted FState and VMFunction structures. This manipulation can lead to execution of attacker-controlled bytecode, resulting in arbitrary code execution.

Impact Analysis

The vulnerability can allow an attacker with limited privileges to execute arbitrary code within the GZDoom environment. This could lead to unauthorized actions such as compromising the system running GZDoom, executing malicious payloads, or disrupting normal operation.

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