CVE-2025-5031 in KillWxapkg
Summary
by MITRE • 05/21/2025
A vulnerability was found in Ackites KillWxapkg up to 2.4.1. It has been rated as problematic. This issue affects some unknown processing of the component wxapkg File Decompression Handler. The manipulation leads to resource consumption. The attack may be initiated remotely. The complexity of an attack is rather high. The exploitation is known to be difficult. The exploit has been disclosed to the public and may be used.
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Analysis
by VulDB Data Team • 05/30/2026
The vulnerability in Ackites KillWxapkg version 2.4.1 represents a significant security concern that falls under the category of resource consumption attacks. This flaw specifically targets the wxapkg File Decompression Handler component, which is responsible for processing and decompressing wxapkg files commonly used in various applications. The issue has been classified as problematic due to its potential to cause system instability and performance degradation through excessive resource utilization. Security researchers have identified that this vulnerability allows attackers to manipulate the decompression process in a manner that consumes disproportionate system resources, potentially leading to denial of service conditions.
The technical nature of this vulnerability stems from inadequate input validation and resource management within the wxapkg File Decompression Handler. When processing maliciously crafted wxapkg files, the decompression handler fails to properly monitor or limit resource consumption during the extraction process. This weakness creates an opportunity for attackers to craft specially formatted files that trigger excessive memory allocation, CPU usage, or disk space consumption. The vulnerability operates at the decompression layer where the application processes compressed data structures, making it particularly dangerous as it can be exploited during normal file processing operations.
The operational impact of this vulnerability extends beyond simple resource exhaustion, as it can be leveraged to create persistent denial of service conditions that affect system availability and user experience. Attackers can remotely initiate exploitation by delivering malicious wxapkg files through various vectors including email attachments, web downloads, or file sharing platforms. The high attack complexity required for successful exploitation suggests that the vulnerability may involve multiple steps or specific conditions that must be met for the attack to succeed. This complexity level indicates that while the vulnerability is exploitable, it requires specialized knowledge and effort to implement effectively.
The exploitation difficulty and public disclosure status of this vulnerability present a concerning security landscape where attackers can leverage existing knowledge to target systems running affected versions of Ackites KillWxapkg. The fact that exploitation has been disclosed and may be used in the wild means that organizations should consider this vulnerability as an active threat rather than a theoretical risk. This vulnerability aligns with common attack patterns documented in the attack mitigation frameworks, particularly those related to resource exhaustion attacks. The attack vector through remote file processing operations makes it particularly dangerous in environments where users regularly download and process files from untrusted sources.
Organizations should implement immediate mitigation strategies including updating to the latest version of Ackites KillWxapkg where available, implementing strict file validation and content scanning procedures, and establishing network monitoring to detect unusual resource consumption patterns. The vulnerability demonstrates the importance of proper resource management in decompression handlers and highlights the need for robust input validation mechanisms. Security teams should also consider implementing sandboxing techniques for processing untrusted files and establishing automated scanning systems to identify potentially malicious wxapkg files before they can be processed by the vulnerable component. This vulnerability serves as a reminder of the critical importance of secure coding practices and proper resource management in file processing components, particularly those handling compressed data formats that are widely used in enterprise environments.