CVE-2026-27313: Adobe Bridge Buffer Overflow Vulnerability

CVE-2026-27313 Overview

CVE-2026-27313 is a Heap-based Buffer Overflow vulnerability affecting Adobe Bridge versions 16.0.2, 15.1.4 and earlier. This vulnerability could allow an attacker to achieve arbitrary code execution in the context of the current user. Successful exploitation requires user interaction, specifically that a victim must open a malicious file crafted by an attacker.

Critical Impact

Exploitation of this heap-based buffer overflow vulnerability can lead to arbitrary code execution, potentially allowing attackers to execute malicious code with the privileges of the current user, compromise system integrity, and gain unauthorized access to sensitive data.

Affected Products

• Adobe Bridge versions 16.0.2 and earlier
• Adobe Bridge versions 15.1.4 and earlier
• Affected platforms: Microsoft Windows and Apple macOS

Discovery Timeline

• 2026-04-14 - CVE-2026-27313 published to NVD
• 2026-04-15 - Last updated in NVD database

Technical Details for CVE-2026-27313

Vulnerability Analysis

This vulnerability is classified as CWE-122 (Heap-based Buffer Overflow), a memory corruption issue that occurs when data is written beyond the boundaries of allocated heap memory. In the context of Adobe Bridge, the vulnerability is triggered when processing specially crafted files, causing the application to write data past the end of the allocated buffer on the heap.

The attack requires local access and user interaction—specifically, a victim must be social engineered into opening a malicious file. Once the victim opens the crafted file in Adobe Bridge, the heap overflow condition is triggered, allowing the attacker to potentially corrupt adjacent heap memory structures and gain control of program execution flow.

Root Cause

The root cause of CVE-2026-27313 is improper bounds checking when Adobe Bridge processes certain file types. When parsing file contents, the application fails to properly validate the size of incoming data before copying it to a heap-allocated buffer. This allows an attacker to craft a malicious file with oversized data fields that exceed the expected buffer size, resulting in heap memory corruption.

Attack Vector

The attack vector for this vulnerability is local, requiring an attacker to deliver a malicious file to the target system and convince the user to open it with Adobe Bridge. Common delivery methods include:

The exploitation scenario involves an attacker crafting a specially malformed file (such as an image or project file supported by Adobe Bridge) containing oversized data fields designed to trigger the heap overflow. When the victim opens this file, the overflow occurs during file parsing, corrupting heap memory and potentially allowing the attacker to redirect execution to attacker-controlled code.

Since no verified code examples are available for this vulnerability, technical details regarding the specific file format triggers and memory corruption mechanism can be found in the Adobe Security Advisory APSB26-39.

Detection Methods for CVE-2026-27313

Indicators of Compromise

• Unexpected crashes or memory access violations in Adobe Bridge, particularly when opening recently received files
• Adobe Bridge process spawning unexpected child processes or making unusual network connections
• Suspicious file types being opened in Adobe Bridge from untrusted sources (email attachments, downloads)
• Evidence of heap corruption or memory manipulation in crash dumps

Detection Strategies

• Monitor for Adobe Bridge application crashes with heap corruption signatures in event logs
• Implement endpoint detection rules to identify Adobe Bridge executing suspicious operations or spawning shell processes
• Deploy file integrity monitoring to detect malicious file staging in common download and temp directories
• Use behavioral analysis to detect anomalous activity following Adobe Bridge file operations

Monitoring Recommendations

• Enable application crash logging and collect Windows Error Reporting (WER) data or macOS crash reports for analysis
• Monitor for execution of scripts or commands from Adobe Bridge process context
• Track file access patterns to identify unusual files being processed by Adobe Bridge
• Implement SentinelOne's behavioral AI detection to identify post-exploitation activities

How to Mitigate CVE-2026-27313

Immediate Actions Required

• Update Adobe Bridge to the latest patched version as specified in Adobe Security Advisory APSB26-39
• Warn users not to open Bridge project files or images from untrusted or unexpected sources
• Consider temporarily restricting Adobe Bridge usage until patches can be applied
• Implement application allowlisting to prevent unauthorized code execution

Patch Information

Adobe has released a security update to address this vulnerability. Administrators and users should apply the latest patches for Adobe Bridge as documented in the Adobe Security Advisory APSB26-39. The patched versions include fixes for the heap-based buffer overflow condition by implementing proper bounds checking during file parsing operations.

Workarounds

• Avoid opening files in Adobe Bridge from untrusted or unknown sources until the patch is applied
• Implement network segmentation to limit potential lateral movement if exploitation occurs
• Use read-only access for shared file repositories to prevent malicious file distribution
• Deploy endpoint protection solutions with heap overflow detection capabilities to identify exploitation attempts

# Verify Adobe Bridge version on Windows
# Navigate to Help > About Adobe Bridge to check version
# Or check registry for installed version:
# HKEY_LOCAL_MACHINE\SOFTWARE\Adobe\Adobe Bridge

# On macOS, check version via:
# /Applications/Adobe Bridge 2026/Adobe Bridge 2026.app/Contents/Info.plist