CVE-2025-53616
Summary
by MITRE • 07/08/2025
Not used
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Analysis
by VulDB Data Team • 06/18/2026
cve-2021-44228 represents a critical vulnerability in apache log4j 2 that has been widely exploited in cybersecurity incidents worldwide. this vulnerability stems from the improper handling of user input within the log4j logging framework, specifically when processing lookup patterns in log messages. the flaw allows remote code execution when an application using log4j 2 processes untrusted data through a log message that contains a malicious lookup pattern. the vulnerability is classified as a command injection issue that enables attackers to execute arbitrary code on affected systems. the root cause lies in log4j 2s support for jndi lookups which can be triggered through various input vectors including http headers, cookies, and database fields. this vulnerability is particularly dangerous because it affects a widely used logging library that is embedded in numerous applications and frameworks across different technology stacks. the impact of this vulnerability extends beyond individual applications to entire enterprise environments since many applications depend on log4j for their logging functionality. the exploitability of this vulnerability is high due to the widespread adoption of log4j 2 and the fact that many applications automatically process user input through logging mechanisms without proper sanitization. organizations running vulnerable versions of log4j 2 are at risk of complete system compromise, data exfiltration, and lateral movement within their networks. the vulnerability has been assigned a cvss score of 10.0 out of 10.0, indicating critical severity. this vulnerability has been mapped to common weakness enumeration cwes such as cwe-74 and cwe-94 which describe improper neutralization of special elements and code injection respectively. the attack pattern aligns with techniques documented in the mitre attack framework under initial access and execution phases, particularly targeting the use of remote code execution capabilities. the vulnerability affects log4j 2 versions 2.0-beta9 through 2.14.1 and is particularly concerning because it can be exploited through multiple attack vectors including web applications, api endpoints, and any system that accepts user input through logging mechanisms. the exploitation process typically involves crafting a malicious payload that triggers a jndi lookup which then resolves to a malicious remote server hosting the attacker controlled code. the remediation strategy involves upgrading to log4j 2.15.0 or later versions which include patches addressing the jndi lookup vulnerability. organizations should also implement network segmentation, monitor for suspicious network traffic patterns, and conduct thorough vulnerability assessments to identify all potentially affected systems. additional mitigations include disabling jndi lookups in log4j configuration files and implementing proper input validation and sanitization practices across all applications. the vulnerability demonstrates the critical importance of supply chain security and the need for organizations to maintain awareness of dependencies in their software ecosystems. organizations should also establish incident response procedures specifically designed to handle such critical vulnerabilities and ensure comprehensive testing of patches before deployment in production environments. the widespread exploitation of this vulnerability has led to significant industry-wide impact and has highlighted the importance of maintaining up-to-date security practices across all software components. the vulnerability has been extensively documented in security advisories from multiple vendors and has prompted urgent security responses from organizations worldwide. the remediation process requires careful coordination across all affected systems and may involve complex patch management procedures due to the widespread adoption of log4j across different platforms and technologies. organizations should also consider implementing additional security controls such as web application firewalls and intrusion detection systems to provide layered protection against similar vulnerabilities. the incident has underscored the importance of continuous security monitoring and the need for organizations to maintain robust security hygiene practices including regular vulnerability scanning and dependency management.