CVE-2025-24442 Overview
CVE-2025-24442 is an out-of-bounds write vulnerability [CWE-787] affecting Adobe Substance 3D Sampler versions 4.5.2 and earlier. The flaw allows attackers to achieve arbitrary code execution in the context of the current user. Exploitation requires user interaction, where a victim must open a malicious file crafted by the attacker. Adobe addressed the issue in security bulletin APSB25-16.
Critical Impact
Successful exploitation yields arbitrary code execution with the privileges of the logged-in user, enabling installation of malware, data theft, or lateral movement from the compromised workstation.
Affected Products
- Adobe Substance 3D Sampler 4.5.2
- Adobe Substance 3D Sampler prior versions (all releases earlier than 4.5.2)
- Windows and macOS installations of Substance 3D Sampler
Discovery Timeline
- 2025-03-11 - CVE-2025-24442 published to NVD
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-24442
Vulnerability Analysis
The vulnerability is an out-of-bounds write [CWE-787] in Adobe Substance 3D Sampler. The application writes data past the bounds of an allocated buffer when parsing a specially crafted file. Attackers leverage this memory corruption to overwrite adjacent structures, including control data such as function pointers or return addresses. The result is arbitrary code execution within the user's security context.
The attack requires local file handling and user interaction. Threat actors typically deliver malicious project files, textures, or material assets through phishing emails, compromised asset marketplaces, or watering-hole sites targeting 3D artists and game developers. The current EPSS probability sits at 0.221%, indicating low observed exploitation likelihood at the time of publication.
Root Cause
The root cause is insufficient bounds checking during the parsing of file format structures. When the application processes attacker-controlled length or offset fields without validation, write operations exceed the allocated buffer. Adobe has not published low-level technical details of the affected parser routine in advisory APSB25-16.
Attack Vector
Exploitation follows a file-based delivery pattern. An attacker crafts a malicious Substance 3D Sampler asset file containing manipulated parser fields. The victim opens the file in a vulnerable Substance 3D Sampler client. The malformed structure triggers the out-of-bounds write, redirects execution flow, and runs attacker-supplied shellcode under the victim's user account.
No verified proof-of-concept exploit is publicly available. See the Adobe Security Advisory APSB25-16 for vendor-provided details.
Detection Methods for CVE-2025-24442
Indicators of Compromise
- Unexpected child processes spawned by Adobe Substance 3D Sampler.exe, such as cmd.exe, powershell.exe, or rundll32.exe
- Substance 3D Sampler process crashes recorded in Windows Event Logs or macOS crash reports immediately after opening third-party asset files
- Outbound network connections originating from the Substance 3D Sampler process to non-Adobe domains
- Sampler project files (.ssa, .sbsar) received from untrusted sources or downloaded from unverified asset marketplaces
Detection Strategies
- Monitor for process lineage anomalies where Substance 3D Sampler launches scripting interpreters or shells
- Enable Windows Defender Exploit Guard or equivalent memory protection telemetry to flag memory corruption events in the Sampler process
- Hunt for newly created executables or scheduled tasks within minutes of Substance 3D Sampler process activity on artist workstations
Monitoring Recommendations
- Track installed Substance 3D Sampler versions across the fleet and alert on any instance at or below 4.5.2
- Forward endpoint process telemetry to a centralized analytics platform for correlation with file-open events
- Inspect email and collaboration platforms for inbound Substance 3D asset files from external senders
How to Mitigate CVE-2025-24442
Immediate Actions Required
- Update Adobe Substance 3D Sampler to the fixed version listed in Adobe Security Advisory APSB25-16
- Instruct users to open Substance 3D Sampler files only from trusted internal sources or verified Adobe marketplaces
- Restrict execution of Substance 3D Sampler to non-administrative user accounts to limit the blast radius of successful exploitation
Patch Information
Adobe released a fixed build addressing CVE-2025-24442 in security bulletin APSB25-16. Administrators should deploy the patched version through Adobe Creative Cloud or enterprise software distribution channels. Refer to the Adobe Security Advisory APSB25-16 for exact fixed version numbers and download locations.
Workarounds
- Block opening of Substance 3D Sampler asset files received from external email or untrusted web downloads at the email gateway and web proxy
- Apply application allowlisting policies that prevent Substance 3D Sampler from spawning command interpreters or scripting hosts
- Isolate 3D content creation workstations on a segmented VLAN with restricted outbound internet access until patching is verified
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
