CVE-2020-24685
8.6 · HIGHOverview
CVE-2020-24685 is a high-severity vulnerability affecting abb ac500_cpu_firmware. It was published on February 9, 2021 and has a CVSS 3.1 base score of 8.6 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
An unauthenticated specially crafted packet sent by an attacker over the network will cause a denial-of-service (DoS) vulnerability. Vulnerability allows attacker to stop the PLC. After stopping (ERR LED flashing red), physical access to the PLC is required in order to restart the application. This issue affects: ABB AC500 V2 products with onboard Ethernet version 2.8.4 and prior versions.
Remediation
Check the references section for vendor advisories and patches from abb. Update ac500_cpu_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| abb | ac500_cpu_firmware | >= 0, < 2.8.5 | Affected |
Frequently Asked Questions
What is CVE-2020-24685?
CVE-2020-24685 is a high-severity vulnerability affecting abb ac500_cpu_firmware. It was published on February 9, 2021 and has a CVSS 3.1 base score of 8.6 (HIGH).
How severe is CVE-2020-24685?
This vulnerability has a CVSS 3.1 base score of 8.6, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2020-24685?
Check the references section for vendor advisories and patches from abb. Update ac500_cpu_firmware to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2020-24685?
CyberStrike's AI-powered security agents can automatically detect CVE-2020-24685 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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