CVE-2025-47121 Overview
CVE-2025-47121 is an Access of Uninitialized Pointer vulnerability [CWE-824] affecting Adobe Framemaker versions 2020.8, 2022.6, and earlier. The flaw can lead to arbitrary code execution in the context of the current user. Exploitation requires user interaction: a victim must open a malicious file crafted by an attacker. Adobe addressed the issue in security bulletin APSB25-66.
Critical Impact
Successful exploitation results in arbitrary code execution under the privileges of the user running Adobe Framemaker, enabling attackers to install programs, modify data, or create new accounts when the user holds administrative rights.
Affected Products
- Adobe Framemaker 2020 (through release 2020.8)
- Adobe Framemaker 2022 (through release 2022.6)
- Microsoft Windows platforms running affected Framemaker versions
Discovery Timeline
- 2025-07-08 - CVE-2025-47121 published to the National Vulnerability Database (NVD)
- 2025-07-10 - Last updated in NVD database
Technical Details for CVE-2025-47121
Vulnerability Analysis
The vulnerability stems from improper initialization of a pointer before use within Adobe Framemaker's file parsing routines. When Framemaker processes a malformed document, the application dereferences a pointer whose contents were never initialized to a valid memory address. An attacker who controls the residual memory contents can redirect execution flow to attacker-supplied data. The result is arbitrary code execution in the current user's security context. Because Framemaker is commonly used by technical writers and documentation teams, malicious files can be delivered through routine document sharing channels.
Root Cause
The defect is classified as [CWE-824] Access of Uninitialized Pointer. Framemaker reads structured data from a document and uses a pointer field before all initialization paths assign it a valid value. Specially crafted file structures cause the vulnerable code path to execute with stale or attacker-influenced stack or heap memory backing the pointer.
Attack Vector
Exploitation requires local access and user interaction. The attacker delivers a malicious Framemaker file through email attachment, file share, or web download. When the victim opens the file in a vulnerable Framemaker installation, the parser triggers the uninitialized pointer access. No elevated privileges are needed by the attacker prior to exploitation; the code runs with the privileges held by the targeted user.
No public proof-of-concept exploit code is currently available, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities catalog. Refer to the Adobe Security Advisory APSB25-66 for vendor-provided technical context.
Detection Methods for CVE-2025-47121
Indicators of Compromise
- Unexpected child processes spawned by FrameMaker.exe, such as cmd.exe, powershell.exe, or rundll32.exe
- Framemaker process crashes with access violation exceptions logged in the Windows Application event log
- Inbound .fm, .mif, or .book files arriving from untrusted external senders
- Outbound network connections initiated by FrameMaker.exe to previously unseen hosts
Detection Strategies
- Monitor process lineage where FrameMaker.exe is the parent of interpreter or scripting binaries
- Alert on Windows Error Reporting events referencing Framemaker modules with exception code 0xC0000005
- Inspect email gateways for Framemaker document formats originating from external domains and route them through sandbox detonation
- Hunt for memory regions marked executable inside the Framemaker process that were recently allocated as private commit
Monitoring Recommendations
- Enable detailed process creation auditing (Windows Event ID 4688) on endpoints with Framemaker installed
- Forward endpoint telemetry to a centralized data lake to correlate file-open events with subsequent process and network activity
- Track software inventory to identify hosts still running Framemaker 2020.8, 2022.6, or earlier builds
How to Mitigate CVE-2025-47121
Immediate Actions Required
- Apply the updates referenced in Adobe Security Advisory APSB25-66 to all systems running Adobe Framemaker
- Restrict opening Framemaker documents received from untrusted or unverified sources
- Verify endpoint protection signatures and behavioral policies are current on hosts with Framemaker installed
- Audit user privileges and remove local administrator rights where not required for documentation workflows
Patch Information
Adobe released fixed builds for Framemaker 2020 and Framemaker 2022 as documented in the Adobe Security Advisory APSB25-66. Administrators should update affected installations beyond versions 2020.8 and 2022.6 to the remediated releases listed in the advisory.
Workarounds
- Block delivery of Framemaker file types (.fm, .mif, .book) from external email senders until patching is complete
- Open untrusted Framemaker documents only inside isolated virtual machines or sandboxed environments
- Run Framemaker under standard user accounts rather than accounts with administrative privileges to limit the blast radius of exploitation
# Example: enumerate Framemaker installations across Windows endpoints
Get-ItemProperty 'HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*' |
Where-Object { $_.DisplayName -like '*FrameMaker*' } |
Select-Object DisplayName, DisplayVersion, InstallLocation
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
