CVE-2025-54212 Overview
CVE-2025-54212 is a heap-based buffer overflow vulnerability affecting Adobe InDesign Desktop versions 20.4, 19.5.4, and earlier. The flaw allows attackers to execute arbitrary code in the context of the current user when a victim opens a crafted malicious file. The vulnerability is classified under CWE-122 and impacts InDesign installations on both Apple macOS and Microsoft Windows.
Adobe published the security advisory APSB25-79 on August 12, 2025. Exploitation requires user interaction, but successful attacks compromise confidentiality, integrity, and availability of the targeted system.
Critical Impact
Successful exploitation enables arbitrary code execution under the current user's privileges, providing attackers a foothold for credential theft, persistence, or lateral movement.
Affected Products
- Adobe InDesign Desktop version 20.4 and earlier (2025 release)
- Adobe InDesign Desktop version 19.5.4 and earlier (2024 release)
- Microsoft Windows and Apple macOS installations
Discovery Timeline
- 2025-08-12 - CVE-2025-54212 published to NVD and Adobe advisory APSB25-79 released
- 2026-06-17 - Last updated in NVD database
Technical Details for CVE-2025-54212
Vulnerability Analysis
The vulnerability is a heap-based buffer overflow ([CWE-122]) in Adobe InDesign's file parsing logic. InDesign processes complex document formats including .indd, .indt, and related interchange formats. When the application parses a malformed structure within one of these files, it writes data beyond the bounds of a heap-allocated buffer.
The overflow corrupts adjacent heap memory, including object metadata and function pointers used by the application. Attackers who control the overflow contents can pivot heap corruption into arbitrary code execution within the InDesign process.
Exploitation runs code with the privileges of the user who opened the file. On workstations where designers operate as local administrators, attackers gain administrative control of the host.
Root Cause
The root cause is improper bounds checking on a length or size field read from an untrusted input file. InDesign allocates a buffer based on one value, then copies data using a different value or count, allowing the copy to exceed the allocation. Adobe has not published the specific function or file format component containing the flaw.
Attack Vector
The attack vector is local and requires user interaction. An attacker delivers a crafted InDesign document through phishing email, file-sharing services, or compromised collaboration platforms. The victim must open the file in a vulnerable InDesign version to trigger the overflow.
The vulnerability cannot be exploited remotely without user action, but social engineering campaigns targeting creative agencies and publishing teams are a realistic delivery method. See the Adobe Security Advisory APSB25-79 for vendor details.
Detection Methods for CVE-2025-54212
Indicators of Compromise
- Unexpected child processes spawned by InDesign.exe or the macOS InDesign binary, such as cmd.exe, powershell.exe, bash, or osascript
- InDesign process crashes followed by suspicious network connections from the same user session
- InDesign documents arriving from untrusted email senders or external file-sharing links
- Writes to autorun, scheduled task, or LaunchAgent locations shortly after an InDesign document is opened
Detection Strategies
- Monitor process lineage for InDesign spawning shells, scripting interpreters, or LOLBins
- Alert on InDesign process memory access violations and unexpected exception handler invocations
- Inspect inbound .indd, .indt, .idml, and .indb attachments at the email gateway and detonate in a sandbox
- Correlate InDesign crash events in the operating system event log with subsequent file system or network changes
Monitoring Recommendations
- Track InDesign version inventory across endpoints to identify hosts still running 20.4, 19.5.4, or earlier
- Log file-open events for InDesign and retain the originating path to identify untrusted sources
- Monitor user directories for newly written executables or scripts created during InDesign sessions
How to Mitigate CVE-2025-54212
Immediate Actions Required
- Upgrade Adobe InDesign to the fixed versions listed in APSB25-79 using the Creative Cloud desktop application
- Restrict opening InDesign documents from untrusted email attachments and external file-sharing links until patched
- Run InDesign under standard user accounts rather than local administrator accounts to limit blast radius
- Enable application-layer attachment scanning at the email gateway for InDesign file formats
Patch Information
Adobe addressed CVE-2025-54212 in the August 2025 security update. Refer to the Adobe Security Advisory APSB25-79 for the specific fixed versions and update instructions. Apply updates through the Creative Cloud desktop application or enterprise deployment tooling.
Workarounds
- Block or quarantine InDesign file formats (.indd, .indt, .idml, .indb) originating from external senders at the mail gateway
- Open suspect InDesign documents only inside isolated virtual machines or sandboxed environments
- Apply operating system exploit mitigations such as Windows Exploit Protection or macOS Hardened Runtime to the InDesign process where supported
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
