CVE-2023-29280 in Substance 3D Painter
Summary
by MITRE • 05/12/2023
Adobe Substance 3D Painter versions 8.3.0 (and earlier) is affected by an out-of-bounds read vulnerability when parsing a crafted file, which could result in a read past the end of an allocated memory structure. An attacker could leverage this vulnerability to execute code in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
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Analysis
by VulDB Data Team • 12/08/2025
Adobe Substance 3D Painter version 8.3.0 and earlier contains a critical out-of-bounds read vulnerability that stems from insufficient input validation during file parsing operations. This vulnerability falls under the Common Weakness Enumeration category CWE-125, which specifically addresses out-of-bounds read conditions where a program attempts to access memory beyond the boundaries of a valid buffer. The flaw manifests when the application processes a specially crafted file that triggers an improper memory access pattern, causing the parser to read data past the end of allocated memory structures. This type of vulnerability represents a fundamental memory safety issue that can lead to unpredictable behavior and potential code execution.
The operational impact of this vulnerability extends beyond simple memory corruption, as it creates a potential attack vector for remote code execution. When an attacker crafts a malicious file designed to exploit this out-of-bounds read condition, they can manipulate the application's memory access patterns to potentially overwrite critical program structures or inject executable code. The vulnerability requires user interaction for exploitation, meaning victims must voluntarily open the malicious file within the application, which makes it a targeted attack rather than a fully automated exploit. However, this requirement does not diminish the severity, as social engineering techniques can effectively persuade users to open such files.
From a cybersecurity perspective, this vulnerability aligns with ATT&CK technique T1203, which covers Exploitation for Client Execution, as it enables attackers to execute code through application exploitation. The attack surface is particularly concerning given that Substance 3D Painter is widely used in creative workflows, making it a plausible target for attackers seeking to compromise creative professionals or organizations. The memory corruption resulting from the out-of-bounds read can manifest in various ways including application crashes, data corruption, or more dangerously, full system compromise when the attacker successfully leverages the vulnerability to execute arbitrary code with the privileges of the current user. The vulnerability's exploitation requires careful crafting of the malicious file to trigger the specific memory access pattern that causes the out-of-bounds read.
The recommended mitigations for this vulnerability primarily focus on immediate remediation through software updates to versions that address the memory parsing flaw. Organizations should implement strict file validation policies and user education to prevent opening untrusted files, particularly those received through email attachments or downloaded from unverified sources. Network-based protections such as sandboxing the application or implementing strict file type restrictions can provide additional layers of defense. Additionally, monitoring for unusual application behavior or memory access patterns that might indicate exploitation attempts can help detect potential attacks. Security teams should also consider implementing privileged account protection measures and ensuring that user accounts running the application do not have excessive privileges that could amplify the impact of successful exploitation. The vulnerability highlights the importance of robust input validation and memory safety practices in applications that process external data files, as even seemingly benign file parsing operations can create significant security risks when not properly secured.