CVE-2026-48390: Adobe Bridge Privilege Escalation via Incorrect Authorization

Adobe Bridge, a creative asset management application, is affected by an Incorrect Authorization vulnerability, identified as CVE-2026-48390, which could lead to privilege escalation. This vulnerability carries a CVSS v3.1 base score of 8.2 (High). An attacker could leverage this flaw to gain unauthorized read and write access to the affected system. Successful exploitation requires user interaction, specifically a victim opening a malicious file with Adobe Bridge. The vulnerability's scope is noted as "changed," indicating that an attacker could affect resources beyond the vulnerable component's security scope, typical of privilege escalation scenarios. Organizations using Adobe Bridge versions 16.0.5 and earlier, as well as 15.1.6 and earlier, are at risk.

Attack Chain

1. An attacker crafts a malicious file designed to exploit the CVE-2026-48390 vulnerability in Adobe Bridge.
2. The attacker delivers this malicious file to a victim, likely via social engineering tactics such as a spearphishing email or through a malicious website leading to a download.
3. The victim opens the specially crafted file using an affected version of Adobe Bridge.
4. Upon opening, the malicious file triggers the Incorrect Authorization vulnerability within Adobe Bridge.
5. The vulnerability is exploited, leading to privilege escalation, where the attacker's code or process gains higher system privileges than the user or the application typically possesses.
6. With elevated privileges, the attacker gains unauthorized read and write access to the affected system.
7. The attacker can then perform further malicious actions, such as deploying additional malware, exfiltrating sensitive data, or establishing persistence on the compromised machine.

Impact

Successful exploitation of CVE-2026-48390 can result in an attacker achieving privilege escalation on the affected system, gaining unauthorized read and write access. This allows for significant impact on system confidentiality and integrity. If exploited, an attacker could potentially execute arbitrary code, install additional malicious software, modify sensitive system configurations, exfiltrate critical data, or fully compromise the victim's machine. While specific victim counts or targeted sectors are not detailed, any organization utilizing vulnerable versions of Adobe Bridge is susceptible to these severe consequences.

Recommendation

• Patch CVE-2026-48390 immediately by updating Adobe Bridge to version 16.0.6, 15.1.7, or later as per the Adobe Security Bulletin referenced.
• Educate users about the risks of opening untrusted or suspicious files, particularly those received via email or downloaded from unverified sources, as exploitation requires user interaction.