CVE-2026-100128 in Adobe
Summary
by MITRE • 10/13/2026
Bridge is affected by an out-of-bounds write 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 Bridge application contains a critical memory corruption flaw classified as an out-of-bounds write, which poses a severe risk to system integrity and confidentiality. This vulnerability stems from improper validation of input data during the processing of specific file formats or internal structures within the software. When the application parses these inputs, it fails to correctly calculate buffer boundaries or verify array indices before writing data to memory locations. Consequently, an attacker can craft malicious payloads that cause the program to write data beyond the allocated limits of a designated memory buffer. This overflow overwrites adjacent memory regions, potentially corrupting critical control structures such as return addresses, function pointers, or exception handling mechanisms within the application's execution context.
From a technical perspective, this flaw aligns with Common Weakness Enumeration identifier CWE-787, which denotes an out-of-bounds write condition. The exploitation of this vulnerability requires user interaction because it relies on social engineering tactics to compel a victim to open a specially crafted malicious file. Once the vulnerable application processes the payload, the attacker gains the ability to manipulate the program's control flow. By carefully crafting the overflow data, an adversary can redirect execution to shellcode or existing library functions, thereby achieving arbitrary code execution within the security context of the current user. This level of access allows for further system compromise, including privilege escalation if additional vulnerabilities are present, installation of malware, exfiltration of sensitive data, and lateral movement across networked systems.
The operational impact is significant as it undermines the fundamental trust in the application's ability to handle untrusted input safely. Users who rely on Bridge for document processing or file management face a direct threat vector that does not require remote code execution capabilities from an attacker but rather local access to deliver the malicious artifact. The requirement for user interaction mitigates some automated attack vectors but leaves organizations vulnerable to targeted phishing campaigns and spear-phishing attacks where human error is exploited. Security teams must recognize that this vulnerability represents a high-severity risk due to its potential for full system compromise, necessitating immediate attention in patch management cycles.
To mitigate the risks associated with this out-of-bounds write vulnerability, it is imperative to apply vendor-provided security patches or updates as soon as they become available. These updates typically include code changes that enforce strict bounds checking and input validation before memory operations are performed. In environments where immediate patching is not feasible, organizations should implement application whitelisting solutions such as Microsoft AppLocker or Windows Defender Application Control to restrict the execution of untrusted applications. Additionally, deploying endpoint detection and response tools with behavior-based monitoring can help identify anomalous memory access patterns indicative of exploitation attempts. Security awareness training should also be reinforced to educate users on recognizing suspicious file attachments and avoiding opening documents from unknown sources, thereby reducing the likelihood of successful user interaction required for exploitation.