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6.9

ABB AC500 V2: Unintended Code Execution from Malicious Data

CVE-2025-7745 · published 1 year ago
Summary

A security weakness in ABB AC500 V2 controllers can allow attackers to execute unauthorized code, potentially leading to system crashes or data breaches. This issue affects all versions up to 2.5.2. ABB recommends updating to the latest version of the controller to ensure security and stability.

Original advisory text
Buffer Over-read vulnerability in ABB AC500 V2.This issue affects AC500 V2: through 2.5.2.
Buffer Over-read vulnerability in ABB AC500 V2.This issue affects AC500 V2: through 2.5.2.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically
  • Gives an attacker partial control
Severity
6.9 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-126Buffer Over-read
Timeline
Published24 Jul 2025
Updated4 Nov 2026
First seen7 Mar 2026
Sources
CVE-2025-7745 · NVD
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