CVE-2026-33849 in rapidvms
Summary
by MITRE • 03/24/2026
Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in linkingvision rapidvms.This issue affects rapidvms: before PR#96.
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 03/28/2026
The vulnerability identified as CVE-2026-33849 represents a critical memory safety issue within the linkingvision rapidvms software system, specifically manifesting as an improper restriction of operations within the bounds of a memory buffer. This flaw falls under the broader category of buffer overflow vulnerabilities that have been consistently classified under CWE-121 as "Stack-based Buffer Overflow" or CWE-787 as "Out-of-bounds Write" depending on the specific implementation context. The vulnerability exists in rapidvms versions prior to PR#96, indicating that the developers have acknowledged and potentially addressed this issue in their codebase.
The technical nature of this vulnerability stems from insufficient input validation and boundary checking mechanisms within the memory management operations of the rapidvms application. When the software processes user-supplied data or external inputs, it fails to properly validate the size and content of memory operations, allowing malicious actors to potentially write data beyond the allocated buffer boundaries. This type of flaw typically occurs when developers assume that input data will remain within expected parameters without implementing adequate bounds checking or sanitization procedures. The vulnerability creates an attack surface where adversaries can exploit memory corruption to execute arbitrary code, escalate privileges, or cause denial of service conditions.
From an operational perspective, this vulnerability poses significant risks to organizations utilizing rapidvms for their video management and surveillance needs. The attack surface extends beyond simple data corruption to potentially enable remote code execution capabilities, especially if the vulnerable system is accessible over network interfaces. Security analysts should consider this vulnerability in the context of the MITRE ATT&CK framework, particularly under techniques such as T1059 for command and scripting interpreter and T1203 for Exploitation for Client Execution, as attackers may leverage this buffer overflow to establish persistent access to affected systems. The impact is amplified in environments where rapidvms operates as a central component of security infrastructure, potentially allowing attackers to compromise entire surveillance networks.
Organizations should implement immediate mitigations including updating to the latest version of rapidvms that incorporates the fix from PR#96, which likely includes enhanced input validation and memory boundary checks. Additional defensive measures should encompass network segmentation to limit access to vulnerable systems, implementation of intrusion detection systems to monitor for exploitation attempts, and regular security assessments of the software environment. The vulnerability also underscores the importance of adhering to secure coding practices and conducting regular code reviews to identify similar buffer-related issues in other applications. Security teams should monitor for any related vulnerabilities in the linkingvision ecosystem and consider implementing application whitelisting controls to restrict execution of untrusted code within the rapidvms environment.