Resource exhaustion in Abb Ac500_cpu_firmware
CVE-2020-24685
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 t…
EPSS: 0.016 (72.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Abb Ac500_cpu_firmware
- Abb Ac500 V2 Products With Onboard Ethernet — versions version 2.8.4 and prior versions
- Abb Pm573-eth — versions 2.0
- Abb Pm583-eth — versions 2.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cybersecurity@ch.abb.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-24685?
- CVE-2020-24685 is a high-severity vulnerability in Abb Ac500_cpu_firmware, classified under CWE-789. CVSS score: 8.6/10. Published 2021-02-09.
- How severe is CVE-2020-24685?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2020-24685 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.