{"id":58804,"date":"2025-07-10T01:19:54","date_gmt":"2025-07-10T01:19:54","guid":{"rendered":""},"modified":"2025-10-26T04:20:12","modified_gmt":"2025-10-26T10:20:12","slug":"cve-2025-43569-arbitrary-code-execution-vulnerability-in-substance3d-stager","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-43569-arbitrary-code-execution-vulnerability-in-substance3d-stager\/","title":{"rendered":"CVE-2025-43569: Arbitrary Code Execution Vulnerability in Substance3D – Stager<\/strong>"},"content":{"rendered":"

Overview<\/strong><\/p>\n

A critical vulnerability has been identified in Substance3D – Stager versions 3.1.1 and earlier that carries a high severity score of 7.8. This vulnerability could potentially allow an attacker to execute arbitrary code in the context of the current user. The exploit requires user interaction as a victim must open a malicious file, which could lead to system<\/a> compromise or data leakage. This vulnerability is especially concerning as it affects a broad range<\/a> of users and could have significant impacts if not addressed promptly.<\/p>\n

Vulnerability Summary<\/strong><\/p>\n

CVE ID: CVE-2025-43569
\nSeverity: High (7.8)
\nAttack Vector: Local
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: Arbitrary code execution<\/a>, potential system compromise or data leakage<\/p>\n

Affected Products<\/strong><\/p>\n

Product | Affected Versions<\/p>\n

Substance3D – Stager<\/a> | 3.1.1 and earlier<\/p>\n

How the Exploit Works<\/strong><\/p>\n

The vulnerability resides in an out-of-bounds write error within the Substance3D<\/a> – Stager software. By crafting a malicious file and inducing a user to open it, an attacker can trigger the out-of-bounds write<\/a> error. This error condition can be manipulated by an attacker to write data beyond the intended buffer boundary, potentially leading to the execution of arbitrary<\/a> code in the context of the current user.<\/p>\n

Conceptual Example Code<\/strong><\/p>\n

Here is a conceptual example of how an attacker might craft a malicious file to exploit this vulnerability<\/a>. This is a simplified representation and actual exploitation would likely require more complex techniques:<\/p>\n

# Attacker creates malicious file\necho \"malicious_payload\" > malicious_file.stg\n# Attacker sends malicious file to the victim\nscp malicious_file.stg victim@target.example.com:\/home\/victim\/\n# Victim opens the malicious file with Substance3D - Stager\nvictim@target.example.com:~$ stager open malicious_file.stg<\/code><\/pre>\n
In this example, `malicious_payload` represents the carefully crafted data that triggers the out-of-bounds write error and leads to arbitrary code execution<\/a>. The file is then sent to the victim who opens it with the vulnerable software<\/a>, resulting in the execution of the malicious code.<\/p>\n
Mitigation Guidance<\/strong><\/p>\n
Users are advised to apply the vendor patch as soon as possible to mitigate this vulnerability<\/a>. As a temporary mitigation, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used to detect and block attempts to exploit this vulnerability<\/a>. Users should also exercise caution when opening files from untrusted sources, as user interaction is required for this vulnerability<\/a> to be exploited.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview A critical vulnerability has been identified in Substance3D – Stager versions 3.1.1 and earlier that carries a high severity score of 7.8. This vulnerability could potentially allow an attacker to execute arbitrary code in the context of the current user. The exploit requires user interaction as a victim must open a malicious file, which […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_monsterinsights_skip_tracking":false,"footnotes":""},"categories":[1],"tags":[],"vendor":[],"product":[],"attack_vector":[86,80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-58804","post","type-post","status-publish","format-standard","hentry","category-uncategorized","attack_vector-buffer-overflow","attack_vector-rce"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t