CVE-2024-34139: Adobe Bridge RCE Vulnerability

CVE-2024-34139 Overview

CVE-2024-34139 is an integer overflow vulnerability affecting Adobe Bridge versions 14.0.4, 13.0.7, 14.1, and earlier. The flaw enables arbitrary code execution in the context of the current user when a victim opens a malicious file. Adobe published the corresponding advisory APSB24-51 on July 9, 2024. The weakness is categorized under CWE-190: Integer Overflow or Wraparound.

Exploitation requires user interaction, which limits mass exploitation scenarios but remains effective against targeted phishing campaigns delivering crafted asset files.

Critical Impact
Successful exploitation results in arbitrary code execution with the privileges of the user running Adobe Bridge, enabling malware installation and data theft.

Affected Products

Adobe Bridge 14.0.4 and earlier 14.x releases
Adobe Bridge 13.0.7 and earlier 13.x releases
Adobe Bridge 14.1 and earlier

Discovery Timeline

2024-07-09 - CVE-2024-34139 published to NVD and Adobe releases advisory APSB24-51
2026-06-17 - Last updated in NVD database

Technical Details for CVE-2024-34139

Vulnerability Analysis

CVE-2024-34139 is an integer overflow or wraparound flaw in Adobe Bridge file parsing routines. Integer overflow occurs when arithmetic operations produce a value exceeding the storage capacity of the underlying integer type. When Bridge processes a maliciously crafted asset file, the overflow condition leads to memory corruption. The corrupted state allows attacker-controlled data to influence program execution, resulting in arbitrary code execution.

The attack vector is local and requires user interaction, meaning the victim must open the malicious file within Adobe Bridge. Code executes with the current user's privileges, so accounts with administrative rights face higher post-exploitation impact.

Root Cause

The root cause is improper validation of size or length values during file parsing [CWE-190]. Adobe's advisory identifies the wraparound condition without publishing the specific parser or file format involved. When the calculated size wraps below zero or beyond expected bounds, subsequent memory allocations and copies operate on inconsistent length assumptions. This mismatch produces heap or buffer corruption exploitable for code execution.

Attack Vector

Attackers deliver a crafted file through email attachments, shared network drives, or malicious downloads. The victim opens the file in Adobe Bridge, triggering the vulnerable parsing path. Because the vulnerability does not require authentication or elevated privileges, any user session running Bridge is at risk. See the Adobe Security Advisory APSB24-51 for vendor guidance.

Detection Methods for CVE-2024-34139

Indicators of Compromise

Unexpected child processes spawned from Bridge.exe, especially command shells, scripting engines, or rundll32.exe
Adobe Bridge process crashes correlated with the opening of external asset files from email or download folders
Outbound network connections from Bridge.exe to unfamiliar hosts shortly after file open events
New persistence artifacts (scheduled tasks, Run keys, startup entries) created following Bridge activity

Detection Strategies

Monitor process lineage for Adobe Bridge spawning interpreters such as powershell.exe, cmd.exe, or wscript.exe
Alert on write operations by Bridge.exe to autorun locations or user startup folders
Correlate application crash events (Windows Event ID 1000) referencing Bridge.exe with subsequent suspicious process activity
Inspect email gateway logs for asset file formats handled by Bridge originating from untrusted senders

Monitoring Recommendations

Enable command-line auditing and process creation logging on workstations running Adobe Bridge
Track version inventory for Bridge installations to identify unpatched hosts running 14.0.4, 13.0.7, 14.1, or earlier
Log file open telemetry for creative applications and correlate with endpoint detection alerts

How to Mitigate CVE-2024-34139

Immediate Actions Required

Apply the Adobe Bridge updates referenced in APSB24-51 to all affected endpoints
Inventory Adobe Bridge installations and prioritize patching for users who regularly open external files
Restrict user privileges so Bridge does not run under administrative accounts
Educate users to avoid opening unsolicited asset files from email or untrusted sources

Patch Information

Adobe released fixed versions in advisory APSB24-51 on July 9, 2024. Administrators should upgrade Bridge to versions later than 14.0.4, 13.0.7, and 14.1 as specified by Adobe. Refer to the Adobe Security Advisory APSB24-51 for exact fixed release numbers and download locations.

Workarounds

Block or quarantine Adobe Bridge asset file types at email and web gateways until patching completes
Enforce application allowlisting to prevent Bridge from launching untrusted child processes
Use least-privilege user accounts to reduce the impact of code execution within Bridge
Disable or restrict Adobe Bridge on systems where it is not required for business operations

bash

# Example: Verify installed Adobe Bridge version on Windows
reg query "HKLM\SOFTWARE\Adobe\Bridge" /s | findstr /i "Version"

# Example: Enumerate Bridge installs across an environment via PowerShell
Get-CimInstance -ClassName Win32_Product |
  Where-Object { $_.Name -like "*Adobe Bridge*" } |
  Select-Object Name, Version, InstallDate