CVE-2025-44090 in CoffeeZip
Summary
by MITRE • 07/23/2026
An issue in OhSoft CoffeeZip v4.8.0.0 allows attackers to execute arbitrary code via downloading and executing a crafted archive file.
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Analysis
by VulDB Data Team • 07/23/2026
The vulnerability present in OhSoft CoffeeZip version 4.8.0.0 represents a critical security flaw that enables remote code execution through malicious archive file manipulation. This issue stems from inadequate input validation and improper handling of archive file contents during the extraction process. Attackers can craft specially designed archive files that, when processed by the vulnerable software, trigger arbitrary code execution on the target system. The vulnerability specifically affects the decompression functionality where the application fails to properly sanitize file paths or content within compressed archives.
This type of vulnerability falls under the broader category of archive handling flaws and can be classified as a command injection or code execution vulnerability. The technical implementation likely involves the software's failure to validate directory traversal sequences or execute malicious payloads embedded within archive files. When CoffeeZip processes a crafted archive, it may inadvertently execute shell commands or binary code that has been embedded within the compressed data structure. The flaw represents a classic improper input validation issue that allows attackers to manipulate the normal execution flow of the application.
The operational impact of this vulnerability is severe as it provides attackers with complete control over affected systems. Once exploited, adversaries can execute malicious code with the privileges of the user running CoffeeZip, potentially leading to full system compromise. The attack vector requires minimal user interaction beyond downloading and opening a malicious archive file, making it particularly dangerous in phishing scenarios or when users unknowingly download compromised files from untrusted sources. This vulnerability directly impacts enterprise environments where users may have elevated privileges or access to sensitive data through the vulnerable software.
Security mitigations for this vulnerability should include immediate patching of CoffeeZip to version 4.8.0.1 or later, which addresses the archive handling flaw through proper input validation and sanitization. Organizations should implement network-level controls such as application whitelisting to restrict execution of unauthorized software, along with endpoint protection solutions that can detect and block malicious archive extraction activities. The vulnerability aligns with attack patterns documented in the attack tree framework where initial access is gained through social engineering or compromised download sources, leading to privilege escalation and system compromise. Additionally, users should be educated about the risks of downloading archives from untrusted sources and the importance of verifying file integrity before opening them. This flaw demonstrates the critical importance of secure coding practices in archive handling components and highlights the need for regular security assessments of third-party software libraries and applications.