CVE-2024-47430: Adobe Substance 3D Painter RCE Vulnerability

CVE-2024-47430 Overview

CVE-2024-47430 is an out-of-bounds write vulnerability in Adobe Substance 3D Painter versions 10.1.0 and earlier. The flaw allows arbitrary code execution in the context of the current user when a victim opens a malicious file. The vulnerability is classified under CWE-787 and requires user interaction for exploitation. Adobe published the fix in security bulletin APSB24-86.

Critical Impact
Attackers can achieve arbitrary code execution in the user's session by delivering a crafted Substance 3D Painter project file that triggers an out-of-bounds write.

Affected Products

Adobe Substance 3D Painter 10.1.0
Adobe Substance 3D Painter versions prior to 10.1.0
Windows and macOS installations of Substance 3D Painter

Discovery Timeline

2024-11-12 - CVE-2024-47430 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-47430

Vulnerability Analysis

CVE-2024-47430 is an out-of-bounds write flaw [CWE-787] in Adobe Substance 3D Painter. The application writes data past the bounds of an allocated memory buffer while parsing attacker-controlled file content. This memory corruption creates a path to arbitrary code execution within the user's process context.

Exploitation is local and requires user interaction. A victim must open a malicious file crafted to trigger the vulnerable write. Successful exploitation gives the attacker the same privileges as the logged-in user, enabling installation of malware, data theft, or lateral movement.

Root Cause

The root cause is missing or incorrect bounds validation during file parsing in Substance 3D Painter 10.1.0 and earlier. When the application processes fields inside a malformed project or asset file, it computes a write offset or length from attacker-supplied values without verifying the destination buffer size. The write then extends beyond the allocated region and corrupts adjacent memory structures.

Attack Vector

The attack vector is local file processing. An attacker delivers a weaponized .spp, texture, or associated asset file through phishing email, malicious download, or shared project repository. When the user opens the file in Substance 3D Painter, the parser triggers the out-of-bounds write. Adobe has not published technical exploitation details in the Adobe Security Bulletin APSB24-86. No public proof-of-concept or in-the-wild exploitation has been reported.

Detection Methods for CVE-2024-47430

Indicators of Compromise

Substance 3D Painter (Substance 3D Painter.exe or Adobe Substance 3D Painter.app) spawning unexpected child processes such as cmd.exe, powershell.exe, or shell interpreters.
Crashes of Substance 3D Painter followed by writes to %APPDATA%, %TEMP%, or user startup locations.
Inbound .spp or texture asset files delivered via email, chat, or untrusted repositories from outside expected creative pipelines.

Detection Strategies

Monitor process lineage for Substance 3D Painter creating scripting hosts, network utilities, or persistence-related binaries.
Alert on Substance 3D Painter modules loading unsigned DLLs or writing executable files to disk immediately after opening a project file.
Correlate application crash telemetry with subsequent file execution or outbound network activity on the same host.

Monitoring Recommendations

Track installed Substance 3D Painter versions across creative and design endpoints and flag any instance at or below 10.1.0.
Log file open events for .spp and related asset extensions in EDR telemetry to enable retrospective hunting.
Watch for anomalous outbound connections from workstations running Substance 3D Painter shortly after project file access.

How to Mitigate CVE-2024-47430

Immediate Actions Required

Upgrade Adobe Substance 3D Painter to the fixed version identified in Adobe Security Bulletin APSB24-86.
Inventory all endpoints running Substance 3D Painter and prioritize patching workstations used by designers who handle external assets.
Instruct users to open project files only from trusted sources and to avoid opening .spp attachments received from unknown senders.

Patch Information

Adobe addressed CVE-2024-47430 in the update announced in Adobe Security Bulletin APSB24-86. Users should install the latest Substance 3D Painter release through the Adobe Creative Cloud desktop application. Verify the installed version is later than 10.1.0 after the update completes.

Workarounds

Restrict Substance 3D Painter to opening files from vetted internal storage locations until patching is complete.
Apply application allowlisting to prevent Substance 3D Painter from spawning script interpreters or unsigned executables.
Segment design workstations from sensitive networks so a compromised user session cannot pivot to critical assets.

bash

# Verify installed Substance 3D Painter version (Windows PowerShell)
Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*" |
  Where-Object { $_.DisplayName -like "*Substance 3D Painter*" } |
  Select-Object DisplayName, DisplayVersion, Publisher