Adobe Dreamweaver Desktop versions 21.6 and earlier are affected by an Improper Input Validation vulnerability that could lead to arbitrary file system write. An attacker could leverage this vulnerability to manipulate or inject malicious data into files on the system. Exploitation of this issue requires user interaction in that a victim must open a malicious file and scope is changed.
This vulnerability has been classified with a CVSS score of 8.6, indicating a high severity level. The potential risks are significant as they can lead to unauthorized access and data manipulation, affecting both confidentiality and integrity.
Organizations should prioritize patching immediately as the exploitation of this vulnerability could lead to severe impacts on their systems.
It is essential to note that there is currently no public exploit or proof of concept available, but the nature of the vulnerability necessitates immediate attention.
The urgency for defenders is to address this vulnerability in their patch cycle to avoid potential exploitation.
Vulnerability Details
The vulnerability allows arbitrary file system write due to improper input validation. It affects Adobe Dreamweaver Desktop versions 21.6 and earlier. The CVSS score of 8.6 signifies a high risk, with a significant impact on confidentiality, integrity, and availability.
The vulnerability was published on January 13, 2026, and is classified under CWE-20. Organizations using affected versions should urgently plan for remediation.
Technical Analysis
The root cause of this vulnerability is improper input validation, allowing attackers to manipulate file writes. The attack vector is local, requiring user interaction to open a malicious file, which triggers the vulnerability.
The attack complexity is low, and no privileges are required to exploit this vulnerability. User interaction is essential, making it a targeted attack vector.
The impact on confidentiality, integrity, and availability is rated high, as the vulnerability allows for significant unauthorized data manipulation.
Risk & Impact Analysis
Risk to organizations includes potential unauthorized access to sensitive data and manipulation of critical files, leading to operational disruption. The blast radius could be extensive, particularly in environments where Dreamweaver is widely used.
Given the CVSS score of 8.6, organizations must assess the urgency of remediation based on their environment and exposure to this vulnerability. Immediate action is recommended.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Adobe Dreamweaver versions 21.6 and earlier are affected by this vulnerability. Organizations should ensure they upgrade to version 21.7 or later to mitigate the risk.
Mitigation & Remediation
Organizations should prioritize upgrading to the latest version of Adobe Dreamweaver to mitigate this vulnerability. If an upgrade is not possible, users should avoid opening files from untrusted sources.
For additional security, organizations can implement configuration hardening and network controls to limit exposure to this vulnerability.
Continuous penetration testing can also help in identifying similar vulnerabilities in the future.
Detection Guidance
Organizations should monitor logs for unusual file access patterns and user behavior that may indicate exploitation attempts. Behavioral anomalies related to file handling should also be scrutinized.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in its potential to disrupt operations and compromise sensitive information. Organizations should learn from this incident and implement robust security measures to protect against similar vulnerabilities.
This incident highlights the importance of continuous security assessments and the need for a proactive approach to vulnerability management.
Developing a vulnerability management program is crucial in identifying and mitigating risks effectively.
Adopting penetration testing methodologies can further enhance security posture by evaluating the effectiveness of defenses.
API security assessments should also be conducted to ensure comprehensive coverage against vulnerabilities.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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