CVE-2026-104344 in FrameMaker
Summary
by MITRE • 10/13/2026
Adobe Framemaker is affected by a Heap-based Buffer Overflow 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.
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Analysis
by VulDB Data Team • 10/13/2026
The Adobe FrameMaker application, a widely used desktop publishing software for creating complex documents and layouts, is susceptible to a critical heap-based buffer overflow vulnerability. This specific flaw resides within the memory management routines responsible for handling input data structures during document processing operations. Heap-based overflows are particularly dangerous because they occur in dynamically allocated memory regions that persist throughout an application's lifecycle, allowing attackers to manipulate pointers or function addresses stored on the heap rather than just corrupting local variables as seen in stack-based overflows. The vulnerability arises when FrameMaker fails to adequately validate the length of input data before copying it into a pre-allocated buffer within the heap structure. When a crafted file containing oversized or malformed data segments is processed, the application writes beyond the boundaries of the allocated memory block, corrupting adjacent memory structures and potentially overwriting critical metadata such as function pointers or object headers that control program flow.
The operational impact of this vulnerability is severe, as it can lead to arbitrary code execution within the security context of the current user who opened the malicious file. By carefully crafting the overflow payload, an attacker can overwrite a return address or a virtual table pointer with shellcode designed to execute system commands, download additional malware, or establish persistence on the compromised host. Since FrameMaker is often used in professional environments where users frequently exchange documents via email or network shares, this vulnerability presents a significant risk vector for targeted attacks. The requirement for user interaction means that social engineering tactics are typically employed to trick victims into opening specially crafted files disguised as legitimate business documents. Once executed, the malicious code operates with the same privileges as the victim, which can lead to full system compromise if the user has administrative rights or access to sensitive corporate resources.
From a classification perspective, this vulnerability aligns with CWE-122, Heap-based Buffer Overflow, and is associated with MITRE ATT&CK technique T1203, Exploitation for Client Execution, which describes how attackers exploit vulnerabilities in client applications like office suites to gain initial access. The lack of proper bounds checking during the parsing of document structures exemplifies CWE-20, Improper Input Validation, indicating that the software does not sufficiently sanitize or verify data integrity before processing it. This type of flaw is common in legacy desktop applications where performance optimizations may have led developers to bypass rigorous safety checks, assuming trusted inputs from internal formats. However, as external file exchange becomes standard practice, these assumptions no longer hold true, leaving users exposed to remote code execution attacks delivered through seemingly innocuous document files.
Mitigation strategies for this vulnerability primarily involve applying the latest security patches provided by Adobe, which address the input validation logic and enforce stricter memory boundary checks during heap allocation operations. Organizations should ensure that all instances of FrameMaker are updated to versions where this flaw has been remediated. In addition to patching, implementing application whitelisting can prevent unauthorized or unsigned executables from running if exploitation occurs, thereby limiting the impact of successful attacks. Network segmentation and email filtering solutions equipped with advanced threat protection capabilities can also help detect and block malicious files before they reach end-user workstations. Furthermore, educating users about the risks of opening unsolicited documents is a critical human-layer defense to reduce the likelihood of successful social engineering attempts that precede exploitation. Regular vulnerability assessments and penetration testing focused on document handling applications should be conducted to identify similar weaknesses in other software components used within the enterprise environment.