CVE-2024-47434: Adobe Substance 3D Painter RCE Vulnerability

CVE-2024-47434 Overview

CVE-2024-47434 is an out-of-bounds write vulnerability [CWE-787] 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. Exploitation requires local user interaction, limiting mass-exploitation potential but retaining significant risk for targeted attacks against 3D artists and design studios.

Adobe published security advisory APSB24-86 addressing this issue. The vulnerability affects file parsing logic within the Substance 3D Painter application and does not require elevated privileges to trigger.

Critical Impact
Successful exploitation grants attackers arbitrary code execution with the privileges of the logged-in user, enabling malware deployment, data theft, and lateral movement from a single crafted project file.

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-2024-47434 published to NVD
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-47434

Vulnerability Analysis

The vulnerability is an out-of-bounds write [CWE-787] in Adobe Substance 3D Painter. Out-of-bounds write flaws occur when an application writes data past the boundary of an allocated memory buffer. Attackers can leverage this condition to corrupt adjacent memory structures, overwrite function pointers, or manipulate object metadata used during file parsing.

In Substance 3D Painter, the flaw is reachable through file processing. When the application parses a crafted project or asset file, malformed length or offset fields cause the parser to write attacker-controlled data outside the intended buffer. This corruption can be shaped into a controlled arbitrary code execution primitive.

The attack executes locally with the privileges of the current user. No authentication is required, but the victim must open the malicious file, typically delivered through email, chat, shared project repositories, or third-party asset marketplaces.

Root Cause

The root cause is missing or incorrect bounds validation in a file parsing routine within Substance 3D Painter. The parser trusts size or index values embedded in the input file without verifying they fit within the destination buffer, allowing the write operation to overflow.

Attack Vector

An attacker crafts a malicious Substance 3D Painter project or asset file and delivers it to a target. When the victim opens the file, the malformed structure triggers the out-of-bounds write and executes attacker-supplied shellcode in the process context. Refer to the Adobe Security Advisory APSB24-86 for vendor technical details.

Detection Methods for CVE-2024-47434

Indicators of Compromise

Unexpected child processes spawned by Substance 3D Painter.exe, such as cmd.exe, powershell.exe, or rundll32.exe.
Substance 3D Painter processes making outbound network connections to untrusted or newly observed domains.
Substance 3D Painter project files (.spp, .sbs, .sbsar) received from external sources or unexpected email attachments.
New autorun entries, scheduled tasks, or persistence artifacts created shortly after opening a 3D asset file.

Detection Strategies

Deploy behavioral endpoint monitoring to identify anomalous process trees originating from Substance 3D Painter.
Monitor file system telemetry for Substance project files written to temporary or download directories followed by application launches.
Alert on memory-corruption exploitation patterns such as unexpected memory allocations, shellcode markers, or ROP chains within the Painter process.

Monitoring Recommendations

Track Substance 3D Painter version inventory across creative workstations to identify unpatched hosts.
Log and review email gateway and file-sharing platform traffic for .spp, .sbs, and .sbsar attachments from external senders.
Correlate endpoint alerts with user activity to detect exploitation attempts targeting design and content creation teams.

How to Mitigate CVE-2024-47434

Immediate Actions Required

Upgrade Adobe Substance 3D Painter to a version later than 10.1.0 as instructed in Adobe advisory APSB24-86.
Inventory all workstations running Substance 3D Painter and prioritize patching for artists handling files from external sources.
Instruct users to avoid opening Substance project files received from unverified senders or untrusted asset marketplaces.

Patch Information

Adobe released a fixed version of Substance 3D Painter addressing CVE-2024-47434. See the Adobe Security Advisory APSB24-86 for the corrected version numbers and download links.

Workarounds

Restrict Substance 3D Painter file handler associations so .spp, .sbs, and .sbsar files do not auto-open from browsers or email clients.
Apply application allowlisting and block Substance 3D Painter from spawning shell interpreters or scripting hosts.
Route third-party asset downloads through a sandbox or isolated review workstation before opening on production endpoints.

bash

# Configuration example: verify installed Substance 3D Painter version on Windows
reg query "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall" /s /f "Substance 3D Painter"