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Adobe Bridge Integer Overflow Vulnerability (CVE-2026-48342) Leads to Arbitrary Code Execution

CVE-2026-48342 is an Integer Overflow or Wraparound vulnerability in Adobe Bridge that could enable an attacker to achieve arbitrary code execution on a victim's system if the victim opens a specially crafted malicious file, affecting versions up to 16.0.3 and 15.1.5.

CVE-2026-48342 details an Integer Overflow or Wraparound vulnerability present in Adobe Bridge, a creative asset management application. This critical flaw allows for arbitrary code execution in the context of the currently logged-in user. Exploitation necessitates user interaction: a victim must be tricked into opening a malicious file specifically crafted to trigger this vulnerability. The vulnerability impacts Adobe Bridge versions up to and including 16.0.3 and versions up to and including 15.1.5. Adobe has assigned this vulnerability a CVSS v3.1 Base Score of 7.8 (High), highlighting its significant risk. This vulnerability could be leveraged by attackers for initial access or to increase control over a compromised system, making it crucial for defenders to understand the mechanism and implement appropriate mitigations.

Attack Chain

  1. An attacker crafts a malicious file designed to exploit the Integer Overflow or Wraparound vulnerability in Adobe Bridge.
  2. The attacker delivers this malicious file to a victim. While the delivery mechanism is not specified, it typically involves social engineering tactics.
  3. The victim is enticed to open the malicious file using the vulnerable Adobe Bridge application.
  4. Upon opening the file, the Integer Overflow or Wraparound vulnerability (CWE-190) is triggered within Adobe Bridge's parsing or processing logic.
  5. The successful exploitation of the vulnerability leads to arbitrary code execution on the victim's system.
  6. The arbitrary code executes in the context of the current user, potentially allowing the attacker to install malware, modify system configurations, or exfiltrate data.

Impact

Successful exploitation of CVE-2026-48342 results in arbitrary code execution on the affected system, operating with the privileges of the user who opened the malicious file. While no specific incidents or victim numbers are mentioned, such a vulnerability allows attackers to gain unauthorized control over a user's machine. This could lead to a wide range of malicious activities, including data theft, further network compromise, deployment of ransomware, or establishment of persistent access to the organization's network. The broad adoption of Adobe products in creative industries suggests that a significant number of individuals and organizations could be targeted if this vulnerability is actively exploited.

Recommendation

  • Patch CVE-2026-48342 immediately by updating Adobe Bridge to version 16.0.4 or later, or 15.1.6 or later as referenced in the Adobe advisory linked in the references section.
  • Educate users on the risks associated with opening unsolicited or suspicious files, as exploitation of CVE-2026-48342 requires user interaction with a malicious file.