Adobe Substance3D - Stager versions 3.0.4 and earlier are affected by a stack-based buffer overflow vulnerability that could result in arbitrary code execution in the context of the current user. This vulnerability allows attackers to execute arbitrary code if a victim opens a malicious file. The exploitation of this issue requires user interaction, which adds a layer of complexity to the attack scenario.
With a CVSS score of 7.8, this vulnerability is classified as high severity. The ability to execute arbitrary code poses significant risks to organizations, as it could lead to unauthorized actions being performed under the context of the current user. Immediate patching is necessary to mitigate these risks.
Organizations should prioritize addressing this vulnerability, especially since exploitation requires user interaction, making social engineering a potential attack vector. The urgency to patch is high, given the potential impact on system integrity and confidentiality.
The vulnerability was published on January 14, 2025, and has been analyzed for its impact and potential exploits. Organizations should closely monitor Adobe's updates regarding this issue and apply necessary patches as soon as they become available.
Vulnerability Details
The vulnerability in question, classified under CWE-121 and CWE-787, indicates a vulnerability involving improper control of a resource through its lifetime. The affected product is Adobe Substance3D - Stager, specifically versions 3.0.4 and earlier. The vulnerability allows for potential exploitation through a stack-based buffer overflow, which could lead to arbitrary code execution.
The CVSS score of 7.8 reflects a high severity level due to the implications of arbitrary code execution. The attack vector for this vulnerability is local, meaning it requires direct access to the vulnerable system. The attack complexity is low, and there are no specific privileges required to exploit this vulnerability, but user interaction is necessary.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of buffer memory, which allows for a buffer overflow to occur. When a malicious file is opened, the application may attempt to write more data to a buffer than it can hold, leading to potential code execution.
The attack vector is local, requiring physical access or the execution of code on the affected system by the user. Attack complexity is low due to the straightforward nature of the exploitation method, which relies on user interaction to trigger the vulnerability. No elevated privileges are required, further simplifying attack scenarios.
The confidentiality, integrity, and availability impacts are all rated as high, indicating that successful exploitation could compromise sensitive user data, alter application behavior, and disrupt service availability.
Risk & Impact Analysis
The real-world risk associated with this vulnerability is substantial due to the potential for arbitrary code execution. Organizations utilizing Adobe Substance3D - Stager should evaluate their exposure to this vulnerability, especially considering the user interaction required for exploitation.
The blast radius could be significant, particularly in environments where users have access to sensitive data or critical systems. Attackers may leverage this vulnerability to gain access to sensitive information or perform unauthorized actions, thereby putting the entire organization at risk.
Given that the CVSS score indicates a high level of severity, organizations should prioritize patching this vulnerability immediately. The exploitation potential, coupled with the impacts on confidentiality, integrity, and availability, necessitates swift action.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version of Adobe Substance3D - Stager is 3.0.4 and earlier. Organizations should ensure that they are running version 3.1.0 or later to avoid this vulnerability.
Mitigation & Remediation
Organizations should patch their installations of Adobe Substance3D - Stager to version 3.1.0 or later to mitigate this vulnerability. If a patch is unavailable, consider implementing workarounds such as restricting file access or monitoring user interactions with potentially harmful files.
Regular security assessments, including continuous penetration testing, can help identify and rectify similar vulnerabilities in the future.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual file access patterns or any indicators that a malicious file has been opened. Behavioral anomalies, such as unexpected application crashes or unauthorized changes, should also be investigated.
AppSecure Threat Intelligence Insight
The significance of this vulnerability extends beyond immediate patching. It reflects a broader trend in application security where user interaction is often the gateway for exploitation. Security teams must remain vigilant and proactive in their defense strategies.
This vulnerability serves as a reminder of the necessity for robust security practices, including user training on recognizing potentially malicious files. Organizations are encouraged to adopt comprehensive security measures, including vulnerability management programs, to systematically address and manage such risks.
Organizations should also consider engaging in penetration testing to validate their defenses against similar vulnerabilities in the future.
Lastly, maintaining an awareness of evolving threats and adjusting security postures accordingly will enhance organizational resilience against attacks that exploit vulnerabilities like CVE-2025-21128.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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