CVE-2025-43546 is a high-severity integer underflow vulnerability (CWE-191) affecting Adobe Bridge versions 15.0.3, 14.1.6, and earlier. The flaw arises when the software improperly handles integer values, causing a wraparound or underflow condition. This can lead to memory corruption, enabling an attacker to execute arbitrary code within the context of the current user. Exploitation requires user interaction, specifically the opening of a maliciously crafted file by the victim. The vulnerability has a CVSS 3.1 base score of 7.8, reflecting high impact on confidentiality, integrity, and availability, with low attack complexity and no privileges required. The attack vector is local (AV:L), meaning the attacker must have access to deliver the malicious file to the victim, but no prior authentication is needed. Although no known exploits are currently reported in the wild, the potential for arbitrary code execution makes this a significant threat. Adobe Bridge is a digital asset management application widely used by creative professionals to organize and preview multimedia files, making it a valuable target for attackers seeking to compromise workstations or steal intellectual property. The lack of available patches at the time of publication increases the urgency for organizations to implement mitigations.

For European organizations, this vulnerability poses a substantial risk, especially to sectors relying heavily on digital media workflows such as advertising agencies, media companies, design firms, and publishing houses. Successful exploitation could lead to unauthorized code execution, resulting in data theft, espionage, or deployment of further malware such as ransomware. Since Adobe Bridge operates with user-level privileges, the attacker’s capabilities are limited to the current user context; however, lateral movement or privilege escalation could follow. The requirement for user interaction (opening a malicious file) means social engineering or phishing campaigns could be leveraged to trigger the exploit. Given the widespread use of Adobe products in Europe and the high value of creative content, the confidentiality and integrity of sensitive intellectual property and client data are at risk. Additionally, disruption of creative workflows could impact business continuity. The absence of known exploits in the wild currently reduces immediate risk but does not eliminate the threat, as attackers may develop exploits rapidly once details are public.

European organizations should prioritize the following mitigations: 1) Implement strict email and file filtering to block or quarantine suspicious files that could exploit this vulnerability. 2) Educate users, particularly creative teams, about the risks of opening files from untrusted sources and encourage verification of file origins. 3) Employ application whitelisting or sandboxing techniques to restrict Adobe Bridge’s ability to execute arbitrary code or interact with other system components. 4) Monitor endpoint behavior for anomalies indicative of exploitation attempts, such as unexpected process launches or memory corruption indicators. 5) Maintain up-to-date backups of critical creative assets to enable recovery in case of compromise. 6) Stay alert for Adobe’s official patches or updates addressing this vulnerability and deploy them promptly upon release. 7) Consider restricting Adobe Bridge usage to trusted internal networks and limiting exposure to external file sources. These targeted controls go beyond generic advice by focusing on the specific attack vector and operational context of Adobe Bridge in creative environments.