{"id":58805,"date":"2025-07-10T02:20:28","date_gmt":"2025-07-10T02:20:28","guid":{"rendered":""},"modified":"2025-10-26T04:20:13","modified_gmt":"2025-10-26T10:20:13","slug":"cve-2025-43570-use-after-free-vulnerability-in-substance3d-stager","status":"publish","type":"post","link":"https:\/\/www.ameeba.com\/blog\/cve-2025-43570-use-after-free-vulnerability-in-substance3d-stager\/","title":{"rendered":"CVE-2025-43570: Use After Free Vulnerability in Substance3D – Stager<\/strong>"},"content":{"rendered":"

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

The cybersecurity world is currently dealing with an alarming vulnerability identified as CVE-2025-43570. This flaw lies within Substance3D – Stager versions 3.1.1 and earlier, and could potentially lead to unauthorized arbitrary code execution. The exploitation of this vulnerability, if successful, could result in the compromise of a system<\/a> or a data leak. This presents a significant threat to users and organizations that utilize the affected software, as it allows malicious actors to execute arbitrary code<\/a> in the context of the current user.<\/p>\n

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

CVE ID: CVE-2025-43570
\nSeverity: High (CVSS: 7.8)
\nAttack Vector: Local
\nPrivileges Required: None
\nUser Interaction: Required
\nImpact: System compromise or data leakage<\/a><\/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 CVE-2025-43570 vulnerability is a Use After Free (UAF) type of vulnerability<\/a>. In this case, a specific object in memory is prematurely freed, but later, a malicious file is processed which still references this deallocated memory<\/a>. This allows an attacker to exploit this condition to execute arbitrary code<\/a> in the context of the current user.<\/p>\n

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

To understand this vulnerability, consider the following conceptual example. This is not an actual exploit code but a simplified representation of how the attack would take place:<\/p>\n

\/\/ A simplified conceptual representation of the UAF vulnerability\n#include \n#include \nint main() {\nchar* pointer = (char*) malloc(10); \/\/ allocate memory\nfree(pointer); \/\/ free the memory prematurely\n\/\/ A malicious file could overwrite the freed memory with arbitrary code\npointer = \"malicious_code\";\n\/\/ The program then accesses the freed memory\nprintf(\"%s\\n\", pointer); \/\/ arbitrary code execution\n}<\/code><\/pre>\n
In this example, after the memory pointed by `pointer` is freed, a malicious file overwrites it with arbitrary<\/a> code. When the program attempts to access the freed memory, it inadvertently executes the malicious code<\/a>.<\/p>\n
How to Mitigate<\/strong><\/p>\n
The best way to mitigate this vulnerability is by applying a vendor patch. In case the patch is not immediately available, using a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) can help protect your system<\/a> temporarily. It is crucial to note that these are only temporary measures, and a permanent fix should be applied as soon as it becomes available from the vendor. In the meantime, it is also recommended not to open files from untrusted or unknown sources to prevent potential<\/a> exploitation.<\/p>\n","protected":false},"excerpt":{"rendered":"
Overview The cybersecurity world is currently dealing with an alarming vulnerability identified as CVE-2025-43570. This flaw lies within Substance3D – Stager versions 3.1.1 and earlier, and could potentially lead to unauthorized arbitrary code execution. The exploitation of this vulnerability, if successful, could result in the compromise of a system or a data leak. This presents […]<\/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":[80],"asset_type":[],"severity":[],"exploit_status":[],"class_list":["post-58805","post","type-post","status-publish","format-standard","hentry","category-uncategorized","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