CVE-2025-43547: Integer Overflow Vulnerability in Bridge Versions 15.0.3, 14.1.6 and Earlier

Overview

The cybersecurity landscape is persistently changing with new vulnerabilities arising regularly. One such vulnerability is CVE-2025-43547, which affects users of Bridge versions 15.0.3, 14.1.6, and earlier. This vulnerability, an instance of Integer Overflow or Wraparound, could lead to arbitrary code execution in the context of the current user. The caveat here is that the exploitation of this vulnerability requires user interaction, meaning a victim must open a malicious file for the exploit to be successful.
The gravity of this vulnerability is not to be underestimated. It not only threatens the integrity of systems running these Bridge versions but also places sensitive data at risk. The likelihood of system compromise or data leakage is high, thereby making it a critical issue that demands immediate attention and remediation.

Vulnerability Summary

CVE ID: CVE-2025-43547
Severity: High (CVSS: 7.8)
Attack Vector: Local
Privileges Required: User
User Interaction: Required
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Bridge | 15.0.3 and earlier
Bridge | 14.1.6 and earlier

How the Exploit Works

The vulnerability stems from an Integer Overflow or Wraparound issue in the affected Bridge versions. In essence, this type of vulnerability occurs when an integer used in the software’s operation reaches its maximum value and wraps around to its minimum value or vice versa.
In the case of CVE-2025-43547, this wraparound error could be exploited by an attacker to execute arbitrary code. The attacker would need to craft a malicious file that, when opened by the victim, triggers the integer overflow. This action could then allow the attacker to execute code in the context of the current user, potentially leading to system compromise or data leakage.

Conceptual Example Code

Below is a conceptual example of how this vulnerability might be exploited. Note that this is a simplified representation and actual exploitation would require a more complex payload and possibly additional steps.

#!/usr/bin/env python
# This is pseudocode for a potential exploit
# It is likely much more complex in a real-world scenario
malicious_file = open("exploit.txt", "w")
overflow_int = 2**31 # this triggers the integer overflow
malicious_code = "..." # place the arbitrary code here
malicious_file.write(str(overflow_int) + malicious_code)
malicious_file.close()

In this example, the attacker creates a file (‘exploit.txt’) with a payload that includes an integer value that will overflow, followed by the attacker’s arbitrary code. If a user opens this file, the integer overflow will trigger, executing the malicious code in the context of the user.