CVE-2026-34630
Published: 14 April 2026
Summary
CVE-2026-34630 is a high-severity Heap-based Buffer Overflow (CWE-122) vulnerability in Adobe Bridge. Its CVSS base score is 7.8 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Malicious File (T1204.002); ranked at the 7.7th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified are NIST 800-53 SI-16 (Memory Protection) and SI-2 (Flaw Remediation).
Threat & Defense at a Glance
Threat & Defense Details
Mitigating Controls (NIST 800-53 r5)AI
Directly addresses the CVE by requiring identification, reporting, testing, and timely installation of patches for the heap-based buffer overflow in vulnerable Adobe Bridge versions.
Implements memory protections that prevent exploitation of heap buffer overflows by unauthorized information transfers and memory corruption attempts during malicious file processing.
Requires validation of file inputs to Adobe Bridge, mitigating the buffer overflow triggered by malformed files even if underlying software flaws persist.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability is a local heap buffer overflow in Adobe Bridge exploited via user opening a malicious file, directly mapping to malicious file user execution leading to arbitrary code execution.
NVD Description
Bridge versions 16.0.2, 15.1.4 and earlier are 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…
more
open a malicious file.
Deeper analysisAI
CVE-2026-34630 is a heap-based buffer overflow vulnerability (CWE-122) affecting Adobe Bridge versions 16.0.2, 15.1.4, and earlier. The flaw resides in the Bridge software and can lead to arbitrary code execution in the context of the current user. It carries a CVSS v3.1 base score of 7.8 (High), reflecting local attack vector, low attack complexity, no required privileges, required user interaction, unchanged scope, and high impact on confidentiality, integrity, and availability.
An attacker can exploit this vulnerability locally by tricking a victim into opening a malicious file within Adobe Bridge. No special privileges are needed (PR:N), and the attack complexity is low (AC:L), but it requires user interaction (UI:R) such as deliberately opening the crafted file. Successful exploitation allows arbitrary code execution with the privileges of the current user, potentially enabling full system compromise depending on the user's context.
Adobe has published Security Bulletin APSB26-39 detailing the issue, available at https://helpx.adobe.com/security/products/bridge/apsb26-39.html. Practitioners should consult this advisory for patch information and mitigation guidance.
Details
- CWE(s)