CVE-2025-47760 in V-SFT
Summary
by MITRE • 05/19/2025
V-SFT v6.2.5.0 and earlier contains an issue with stack-based buffer overflow in VS6MemInIF!set_temp_type_default function. Opening specially crafted V7 or V8 files may lead to crash, information disclosure, and arbitrary code execution.
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Analysis
by VulDB Data Team • 05/19/2025
The vulnerability identified as CVE-2025-47760 represents a critical stack-based buffer overflow in V-SFT version 6.2.5.0 and earlier releases. This flaw exists within the VS6MemInIF!set_temp_type_default function, which processes V7 and V8 file formats used in the software's memory management operations. The vulnerability stems from insufficient input validation and bounds checking when handling user-supplied data structures within these specific file formats, creating a condition where maliciously crafted data can overwrite adjacent memory locations on the stack.
The technical implementation of this vulnerability allows attackers to manipulate memory layout through carefully constructed V7 or V8 files that trigger the buffer overflow during parsing operations. When the vulnerable function processes these malformed files, it fails to properly validate the size of incoming data before copying it into fixed-size stack buffers, resulting in memory corruption that can be exploited to execute arbitrary code. The stack-based nature of this vulnerability means that the overflow can overwrite return addresses, function pointers, and other critical stack data, enabling attackers to redirect program execution flow.
The operational impact of this vulnerability extends beyond simple system crashes to encompass full system compromise capabilities. An attacker who successfully exploits this vulnerability can achieve arbitrary code execution with the privileges of the affected application, potentially leading to complete system takeover. The vulnerability also poses risks for information disclosure, as memory corruption can expose sensitive data stored in adjacent memory locations, including cryptographic keys, user credentials, or other confidential information. This makes the vulnerability particularly dangerous in environments where V-SFT is used for processing sensitive data or in systems with high security requirements.
Security professionals should consider this vulnerability in the context of the CWE-121 stack-based buffer overflow category, which is classified as a fundamental memory safety issue that has been extensively documented in the software security community. The ATT&CK framework would categorize this vulnerability under the T1059.007 technique for command and scripting interpreter, as exploitation may involve executing malicious code through the compromised application. Additionally, this vulnerability aligns with T1566.001 threat group tactics related to spearphishing with malicious attachments, since the attack vector involves specially crafted files that could be delivered through email or other file transfer mechanisms.
Mitigation strategies should focus on immediate patch deployment for V-SFT versions 6.2.5.0 and earlier, as well as implementing defensive programming measures such as stack canaries, address space layout randomization, and input validation controls. Organizations should also consider network segmentation and file access controls to limit the potential impact of exploitation attempts. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components of the software ecosystem, while monitoring for exploitation attempts through network intrusion detection systems and endpoint protection solutions.