Description

In vdec, there is a possible out of bounds write due to a missing bounds check. This could lead to remote escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation. Patch ID: ALPS11383899; Issue ID: MSV-9614.

Executive Summary

Technical Details

Mitigations

References

Additional Metadata

{
  "score": "8.8",
  "pubDate": "2026-10-05T02:16:53.803Z",
  "pubdate": "2026-10-05T02:16:53.803Z",
  "executiveSummary": "This vulnerability involves an out-of-bounds (OOB) write condition within the vdec component, stemming from an inadequate validation of input bounds.\nThe flaw permits remote exploitation, potentially resulting in escalation of privilege without requiring prior execution privileges on the target system.\nAlthough exploitation requires user interaction, successful execution could grant an attacker elevated system access.\nThe vulnerability is tracked under Issue ID MSV-9614 and Patch ID ALPS11383899.\nThis represents a significant security risk, as the inability to properly verify memory write boundaries can lead to memory corruption, arbitrary code execution, and total system compromise.\nOrganizations using the vdec component should treat this as a high-priority remediation task.",
  "technicalDetails": "The vulnerability originates in the vdec component due to a critical failure to implement rigorous bounds checking during memory write operations. An out-of-bounds write occurs when an application writes data outside the memory boundaries of a target buffer, potentially corrupting adjacent memory structures, overwriting function pointers, or modifying critical system variables.\nThe root cause is identified as an missing input validation mechanism that fails to enforce strict size constraints on incoming data before writing it to a memory buffer. Because the vdec component processes data without verifying that the destination buffer is of sufficient capacity, an attacker can supply a specially crafted payload designed to overflow the buffer.\nThe attack flow typically begins with the delivery of malicious data to the vdec component. This delivery mechanism necessitates user interaction, such as opening a file or visiting a malicious webpage, which triggers the processing routine. Once the data reaches the vulnerable function, the lack of bounds checking allows the malicious input to persist past the intended buffer allocation limits.\nUpon successful exploitation, the OOB write enables the corruption of adjacent memory memory space. In a sophisticated attack scenario, this can be leveraged to achieve arbitrary code execution by overwriting return addresses or function pointers within the process's address space. This allows the attacker to redirect the instruction pointer to shellcode or execute return-oriented programming (ROP) chains, bypassing non-executable memory protections.\nBecause this vulnerability facilitates remote escalation of privilege, an unauthenticated attacker can effectively elevate their permissions to the level of the vdec process, which often operates with high privileges in the system architecture. This post-exploitation impact allows for persistence, lateral movement, and unauthorized access to sensitive system resources. There are no additional execution privileges required, making this a potent vector for system compromise when the underlying software component is exposed to untrusted input."
}