Adobe Substance3D Stager versions 3.1.0 and earlier are affected by a NULL Pointer Dereference vulnerability that could result in an application denial-of-service. This vulnerability allows attackers to crash the application, leading to a denial-of-service condition. Exploitation of this issue requires user interaction; specifically, a victim must open a malicious file.
With a CVSS score of 5.5, classified as medium severity, this vulnerability presents a significant risk to organizations using the affected software. The potential for application crashes can disrupt business operations and impact user experience. Therefore, organizations should prioritize addressing this vulnerability.
Currently, there is no known public exploit for this vulnerability, indicating that it has not been widely exploited in the wild. However, the fact that user interaction is required for exploitation does not diminish the urgency of remediation. Organizations using Substance3D Stager are advised to schedule an update to the latest version as part of their security protocols.
Organizations should prioritize patching immediately to mitigate the risk associated with this vulnerability. Regularly monitoring for updates and implementing security awareness training for users can also help prevent exploitation of similar vulnerabilities.
Vulnerability Details
The vulnerability is classified under CWE-476, indicating a NULL Pointer Dereference issue. According to Adobe's advisory, this vulnerability affects all Substance3D Stager versions prior to 3.1.1. The vulnerability was published on February 11, 2025, and has been analyzed thoroughly.
Technical Analysis
The root cause of this vulnerability lies in the application’s handling of NULL pointers, which can lead to critical failures when the application attempts to access memory locations that have not been initialized. This vulnerability is exploitable through a local attack vector, requiring low complexity and no privileges, but necessitating user interaction to open the malicious file.
The impacts on availability are high, as the application can crash, resulting in service disruption. There is no impact on confidentiality or integrity, as the vulnerability does not enable unauthorized access to sensitive data.
Risk & Impact Analysis
Risk to organizations includes significant disruption of services due to application crashes, which could affect productivity and user trust. Furthermore, the requirement for user interaction means that organizations must also consider user awareness and training to prevent accidental exploitation.
The medium CVSS score indicates that while this vulnerability is not critical, it should still be addressed in a timely manner. Organizations should assess their exposure and include this vulnerability in their priority patch cycle.
Organizations should schedule remediation to upgrade to versions that are not affected by this vulnerability. Regular security assessments can help identify and mitigate risks associated with such vulnerabilities.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of Adobe Substance3D Stager prior to 3.1.1 are affected by this vulnerability.
Mitigation & Remediation
Adobe has provided a patch to address this vulnerability in version 3.1.1. Organizations using affected versions should immediately upgrade to this version to mitigate the risk. Additionally, employing a robust security posture, including user training on recognizing malicious files, can significantly reduce the chances of exploitation.
For ongoing security assessments, organizations should consider implementing penetration testing to ensure that their software and systems are safe from similar vulnerabilities.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor application logs for anomalies. Additionally, tracking user interactions that involve opening files from untrusted sources can provide insight into possible risks. Behavioral anomalies in application performance may also indicate an attempt to exploit this vulnerability.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability underscores the importance of secure coding practices and user awareness training. This incident highlights a common trend where user interaction is leveraged for exploitation, emphasizing the need for organizations to implement comprehensive security measures.
Security teams should take this opportunity to review their vulnerability management protocols and ensure that they are equipped to handle similar threats in the future. Regular training and updates can significantly mitigate risks associated with vulnerabilities like CVE-2025-21155.
For further insights into application security, organizations can explore resources on penetration testing methodology and engage in proactive security assessments to strengthen their defenses.
Organizations should also consider implementing a vulnerability management program to continuously monitor and address security weaknesses.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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