Symbolic Link Handling Issue in 7-Zip Software by 7-Zip
CVE-2025-55188
Key Information:
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What is CVE-2025-55188?
CVE-2025-55188 is a vulnerability found in 7-Zip, a widely used open-source file archiver that enables users to compress and decompress files in various formats. The flaw lies in the improper handling of symbolic links during the extraction process, specifically in versions prior to 25.01. This oversight could allow attackers to manipulate the extraction of files in ways that lead to unintended file overwrites or the potential execution of malicious code, ultimately compromising the integrity and security of the affected systems. Given the prevalence of 7-Zip in file management, organizations relying on this software are particularly vulnerable to the implications of this flaw if it is not addressed.
Potential impact of CVE-2025-55188
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Data Integrity Risks: The improper extraction of files due to this vulnerability can result in corrupted or replaced files within an organization's file systems, potentially leading to significant data loss or operational disruptions.
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Unauthorized File Access: Exploiting this vulnerability could enable attackers to gain unauthorized access to sensitive information by extracting malicious files in lieu of legitimate files, creating pathways for further attacks or data breaches.
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System Compromise: If successfully exploited, this vulnerability may allow attackers to execute malicious code on the affected systems. This can lead to a host of security issues, including the installation of additional malware, network infiltration, and exploitation of other vulnerabilities within the same environment.
Affected Version(s)
7-Zip 0 < 25.01
Exploit Proof of Concept (PoC)
PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.