CVE-2025-47126: Adobe Framemaker Out-Of-Bounds Write Vulnerability

Overview

The Common Vulnerabilities and Exposures (CVE) system has announced CVE-2025-47126, a critical vulnerability found in Adobe Framemaker versions 2020.8, 2022.6, and earlier. This vulnerability, an out-of-bounds write vulnerability, could potentially allow an attacker to execute arbitrary code in the context of the current user. This exploit requires user interaction, as a victim must open a malicious file for the vulnerability to be exploited. It poses a significant threat to users and businesses alike, particularly those who heavily rely on Adobe Framemaker for their daily operations. This vulnerability is of critical concern due to its potential to lead to a system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-47126
Severity: High (CVSS 7.8)
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Adobe Framemaker | 2020.8 and earlier
Adobe Framemaker | 2022.6 and earlier

How the Exploit Works

The vulnerability, an out-of-bounds write error, originates from the failure of Adobe Framemaker to properly verify user-supplied data before copying it to an insufficiently sized memory buffer. This allows an attacker to deliver a malicious file, which when opened by a user, would overflow the buffer and overwrite adjacent memory spaces. This memory corruption could then be leveraged by the attacker to execute arbitrary code in the context of the current user, potentially leading to system compromise or data leakage.

Conceptual Example Code

Here’s a conceptual example that demonstrates how the vulnerability might be exploited. This pseudocode represents a malicious file that triggers the out-of-bounds write:

def malicious_file():
# Create an overly large buffer
buffer = "A" * 50000
# Write the buffer to a file
with open("malicious.fmk", "w") as file:
file.write(buffer)
malicious_file()

In this simplified example, the attacker creates a ‘malicious.fmk’ file with an overly large buffer, and if a user opens this file with a vulnerable version of Adobe Framemaker, it would trigger the out-of-bounds write, potentially leading to arbitrary code execution.
Remember that this is a conceptual example and not a real exploit. Actual exploitation would likely involve the use of specific techniques to control the execution flow of the vulnerable application.