CVE-2025-27158 is a high-severity vulnerability affecting Adobe Acrobat and Acrobat Reader. The vulnerability is classified as an Access of Uninitialized Pointer issue. According to the CVSS score of 7.8, the severity of this vulnerability is high, indicating that it poses a significant risk to organizations utilizing these software products.
This vulnerability allows attackers to execute arbitrary code in the context of the current user, which could lead to further exploitation if a victim opens a malicious file. Exploitation requires user interaction, emphasizing the importance of user awareness and training.
Organizations should prioritize patching immediately to eliminate this threat. The urgency stems not only from the potential impact of arbitrary code execution but also from the relatively low complexity required for exploitation, as the attack vector is local.
Given that the vulnerability affects specific versions of Acrobat Reader and Acrobat, it is crucial for defenders to assess their environments and ensure that they are running updated software. Failure to do so may expose organizations to significant risks.
Vulnerability Details
The vulnerability is detailed as follows: Acrobat Reader versions 24.001.30225, 20.005.30748, 25.001.20428 and earlier are impacted. It is classified under CWE-824, which relates to Access of Uninitialized Pointer vulnerabilities. The affected products include Acrobat, Acrobat DC, Acrobat Reader, and Acrobat Reader DC.
The CVSS score for this vulnerability is 7.8, indicating high severity. The attack vector is local, and the complexity is considered low. No privileges are required for exploitation, but user interaction is necessary, meaning that a victim must open a malicious file.
The potential impacts include high confidentiality, integrity, and availability impacts, as exploitation could allow for complete control over the affected system within the user's context.
Technical Analysis
The root cause of this vulnerability lies in the mishandling of uninitialized pointers within the Acrobat software. Attackers may leverage this vulnerability by crafting malicious files that exploit the uninitialized pointers, leading to arbitrary code execution when the file is opened by the user.
The attack vector is local, indicating that the attacker must have access to the victim's system to deliver the malicious file. The attack complexity is low, meaning that even users with minimal technical knowledge could be susceptible to this type of attack.
Since no privileges are required to exploit this vulnerability, any user with access to the vulnerable software is at risk. Additionally, user interaction is required, as the victim must actively open the malicious file for the exploit to succeed.
The confidentiality impact is high, as attackers could potentially access sensitive user data. The integrity impact is also high, with the possibility of altering system files or configurations. Furthermore, the availability impact is high, as exploitation could render the software inoperable.
Risk & Impact Analysis
Risk to organizations includes the possibility of unauthorized access to sensitive data and potential system compromise. The blast radius of this vulnerability is significant, given that many organizations utilize Adobe Acrobat and Reader for document processing and review.
Organizations should address this vulnerability in their priority patch cycle due to the high CVSS score and the potential impact on confidentiality, integrity, and availability. It is essential to evaluate existing security measures and educate users on the risks associated with opening untrusted files.
Given the low exploitation complexity and the requirement for user interaction, organizations should implement additional security controls, such as file scanning and user training, to mitigate risks associated with this vulnerability.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
Affected versions include Acrobat and Acrobat Reader versions 24.001.30225, 20.005.30748, 25.001.20428, and earlier. Organizations must ensure they are using updated versions to mitigate this vulnerability.
Mitigation & Remediation
To remediate this vulnerability, organizations should apply the latest security patches provided by Adobe for Acrobat and Acrobat Reader. If patches are not immediately available, users should avoid opening untrusted files and should implement file scanning solutions to detect potential threats.
For comprehensive security measures, organizations can consider engaging in penetration testing services to identify additional vulnerabilities within their systems.
Regular monitoring and user training should also be part of an organization’s security strategy to mitigate risks associated with this vulnerability.
Detection Guidance
Organizations should monitor logs for indicators of exploitation, such as unusual file access patterns or unexpected application behavior. Behavioral anomalies may indicate attempts to exploit this vulnerability, especially when users open files from untrusted sources.
Network signatures can also be utilized to detect malicious file transfers or execution attempts related to this vulnerability.
AppSecure Threat Intelligence Insight
This vulnerability highlights the ongoing risks associated with software that requires user interaction for exploitation. As attackers increasingly target user behavior, it is essential for organizations to adopt a proactive posture towards security.
Security teams should remain vigilant and continuously update their threat intelligence capabilities to adapt to evolving attack vectors. Engaging in penetration testing methodology can help organizations uncover potential vulnerabilities before they are exploited.
Furthermore, organizations should consider the lessons learned from vulnerabilities like CVE-2025-27158 to inform their security practices and user training programs.
For those looking to bolster their defenses, engaging with professional services can provide additional insights and support in navigating complex security landscapes.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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