CVE-2025-43548: Adobe Dimension RCE Vulnerability

CVE-2025-43548 Overview

CVE-2025-43548 is an out-of-bounds write vulnerability [CWE-787] affecting Adobe Dimension versions 4.1.2 and earlier on Windows and macOS. Successful exploitation allows arbitrary code execution in the context of the current user. The flaw requires user interaction, since a victim must open a malicious file crafted by an attacker. Adobe published the issue in security bulletin APSB25-45 on May 13, 2025.

Critical Impact
Opening a malicious Dimension file can lead to arbitrary code execution with the current user's privileges, potentially enabling full compromise of the affected workstation.

Affected Products

Adobe Dimension versions 4.1.2 and earlier
Microsoft Windows installations of Adobe Dimension
Apple macOS installations of Adobe Dimension

Discovery Timeline

2025-05-13 - Adobe releases security bulletin APSB25-45
2025-05-13 - CVE-2025-43548 published to NVD
2025-05-19 - Last updated in NVD database

Technical Details for CVE-2025-43548

Vulnerability Analysis

The vulnerability is an out-of-bounds write [CWE-787] in Adobe Dimension's file parsing logic. When Dimension processes a malformed input file, the application writes data beyond the bounds of an allocated buffer. This corruption of adjacent memory can be steered by an attacker to overwrite control data such as function pointers, virtual table entries, or return addresses. The end result is arbitrary code execution in the context of the user running Dimension.

The attack vector is local and requires user interaction. The attacker must convince a victim to open a malicious Dimension project or asset file, typically delivered through phishing, malicious downloads, or shared design assets. No elevated privileges are required to trigger the flaw.

Root Cause

The root cause is missing or insufficient bounds checking during deserialization of attacker-controlled file content. Crafted size or offset fields in the malicious file drive a write operation past the end of a heap or stack buffer, producing exploitable memory corruption.

Attack Vector

Exploitation follows the standard client-side file format pattern. An attacker crafts a malicious 3D scene or asset file and delivers it to a target user. When the user opens the file in a vulnerable version of Dimension, the parser triggers the out-of-bounds write. Successful exploitation yields code execution with the privileges of the logged-in user, enabling credential theft, lateral movement, or persistence.

No proof-of-concept exploit is publicly available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog at this time. See the Adobe Security Bulletin APSB25-45 for vendor-provided technical context.

Detection Methods for CVE-2025-43548

Indicators of Compromise

Unexpected child processes spawned by Dimension.exe on Windows or the Dimension binary on macOS, particularly shells, scripting hosts, or LOLBins
Crashes or anomalous exits of Adobe Dimension shortly after opening files received from untrusted sources
Inbound Dimension project files delivered through email, chat, or shared cloud storage from external senders

Detection Strategies

Hunt for process lineage where Adobe Dimension is the parent of cmd.exe, powershell.exe, wscript.exe, bash, or osascript
Alert on Dimension writing executable content to user-writable paths such as %APPDATA%, %TEMP%, or ~/Library/Application Support
Inspect Dimension file attachments at the email gateway and detonate suspicious samples in a sandbox before delivery

Monitoring Recommendations

Track Adobe Dimension versions across managed endpoints and flag installations at or below 4.1.2
Monitor outbound network connections initiated by the Dimension process, which should be limited under normal use
Centralize endpoint telemetry and correlate file-open events with subsequent process and network activity

How to Mitigate CVE-2025-43548

Immediate Actions Required

Upgrade Adobe Dimension to the fixed version listed in Adobe Security Bulletin APSB25-45 on all Windows and macOS endpoints
Inventory hosts running Dimension 4.1.2 or earlier and prioritize patching for users handling external design assets
Instruct users not to open Dimension files from untrusted email, chat, or download sources until patching is complete

Patch Information

Adobe addressed CVE-2025-43548 in the update referenced by bulletin APSB25-45, published on May 13, 2025. Administrators should apply the vendor-supplied update through Adobe Creative Cloud or enterprise software distribution tools. Refer to the Adobe Security Bulletin APSB25-45 for exact fixed versions and installer details.

Workarounds

Restrict opening of .dn and related Dimension asset files to known internal sources until the patch is deployed
Apply application allowlisting and block execution of child processes from Adobe Dimension where feasible
Run Dimension under a standard user account, never with administrative privileges, to limit blast radius if exploited

bash

# Example: identify Windows hosts running vulnerable Adobe Dimension versions
Get-ItemProperty 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*' |
  Where-Object { $_.DisplayName -like 'Adobe Dimension*' } |
  Select-Object DisplayName, DisplayVersion, InstallLocation