InDesign Desktop versions 21.0, 19.5.5 and earlier are affected by an Access of Uninitialized Pointer vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file. With a CVSS score of 7.8, this vulnerability is classified as high severity, indicating that it poses a significant risk to organizations.
Risk to organizations includes potential unauthorized access to sensitive data, system compromise, and operational disruption. Given that exploitation requires user interaction, the attack vector is categorized as local. However, successful exploitation can lead to severe consequences, including high impacts on confidentiality, integrity, and availability.
Organizations should prioritize patching immediately. Adobe has released updates to address this vulnerability, and users are encouraged to upgrade to the latest versions to mitigate these risks.
The vulnerability was published on January 13, 2026, and is currently in an analyzed status. It is crucial for organizations to stay informed about such vulnerabilities and implement necessary preventive measures.
Vulnerability Details
This vulnerability allows access of uninitialized pointers within Adobe InDesign, specifically affecting versions 21.0, 19.5.5 and earlier. The CVSS score of 7.8 indicates a high severity, and the issue falls under CWE-824 classification. The vulnerability was disclosed on January 13, 2026, and requires user interaction for exploitation.
Technical Analysis
The root cause of this vulnerability lies in the handling of uninitialized pointers within the InDesign application. Attackers may leverage this flaw through local access, requiring a victim to open a specially crafted file. The attack complexity is rated as low, meaning that it can be exploited by users with minimal technical expertise. Privileges required for exploitation are none, but user interaction is necessary.
The impact on confidentiality, integrity, and availability is high, as successful exploitation can lead to arbitrary code execution, allowing attackers to execute malicious actions within the context of the current user.
Risk & Impact Analysis
Organizations using affected versions of Adobe InDesign face significant risks, as exploitation of this vulnerability could lead to unauthorized access and control over systems. The blast radius is considerable, given the widespread use of InDesign in various industries. Organizations should assess their deployments and prioritize patching as part of their remediation strategies.
Organizations should address this vulnerability in their priority patch cycle, given the potential for exploitation and the impacts it can have on their operational integrity and data security.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of Adobe InDesign include 21.0, 19.5.5, and all earlier versions prior to the vendor's patch. Users are encouraged to upgrade to the latest release to mitigate this vulnerability.
Mitigation & Remediation
Organizations should implement the following remediation strategies:
Patch the InDesign software to the latest version provided by Adobe. Ensure all systems are updated to prevent exploitation of this vulnerability.
For those unable to apply the patch immediately, consider implementing configuration hardening measures to mitigate risks until updates can be applied. Monitoring for abnormal file access patterns can also be beneficial.
Engaging in penetration testing can help identify additional vulnerabilities that may be present in your systems.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor the following indicators:
Log file access attempts, especially those involving file types associated with InDesign. Monitor for any behavioral anomalies that may indicate exploitation attempts.
Set up network signatures to detect unusual file access patterns or any other suspicious activity that may indicate an attempted breach.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability highlights the ongoing risks associated with software vulnerabilities that require user interaction for exploitation. It emphasizes the need for vigilance among users in handling potentially malicious files.
Organizations should learn from this incident and adopt comprehensive security strategies that include user education on recognizing phishing attempts and the risks of opening unknown files.
Incorporating regular security assessments and vulnerability management programs can significantly enhance an organization's resilience against similar threats.
Additionally, organizations should consider leveraging penetration testing methodologies to proactively identify and remediate vulnerabilities before they can be exploited.
Lastly, organizations should stay informed about emerging threats and vulnerabilities, ensuring they have updated incident response plans to address potential exploitation.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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