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TI-2020-15152 Aliases CVE-2020-24686GHSA-9f9p-5j8g-3cmm

AC500 V2 webserver denial of service vulnerability

Priority LOW 38CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

The vulnerabilities can be exploited to cause the web visualization component of the PLC to stop and not respond, leading to genuine users losing remote visibility of the PLC state. If a user attempts to login to the PLC while this vulnerability is exploited, the PLC will show an error state and refuse connections to Automation Builder. The execution of the PLC application is not affected by this vulnerability. This issue affects ABB AC500 V2 products with onboard Ethernet.

Why it matters now

EPSS 0.02498 84th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
ABBAC500 V2 products with onboard EthernetAll—No fix listedCNA
  • AC500 V2 products with onboard Ethernet VendorABB Affected All Fixed in — No fix listed CNA

CPE configurations NVD · 12

CPEVersionsRoleVendor
cpe:2.3:o:abb:pm554_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableABB
cpe:2.3:h:abb:pm554:-:*:*:*:*:*:*:*not specified by NVDRunning onABB
cpe:2.3:o:abb:pm556_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableABB
cpe:2.3:h:abb:pm556:-:*:*:*:*:*:*:*not specified by NVDRunning onABB
cpe:2.3:o:abb:pm564_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableABB
cpe:2.3:h:abb:pm564:-:*:*:*:*:*:*:*not specified by NVDRunning onABB
cpe:2.3:o:abb:pm566_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableABB
cpe:2.3:h:abb:pm566:-:*:*:*:*:*:*:*not specified by NVDRunning onABB
cpe:2.3:o:abb:pm572_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableABB
cpe:2.3:h:abb:pm572:-:*:*:*:*:*:*:*not specified by NVDRunning onABB
  • cpe:2.3:o:abb:pm554_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·ABB
  • cpe:2.3:h:abb:pm554:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ABB
  • cpe:2.3:o:abb:pm556_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·ABB
  • cpe:2.3:h:abb:pm556:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ABB
  • cpe:2.3:o:abb:pm564_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·ABB
  • cpe:2.3:h:abb:pm564:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ABB
  • cpe:2.3:o:abb:pm566_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·ABB
  • cpe:2.3:h:abb:pm566:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ABB
  • cpe:2.3:o:abb:pm572_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·ABB
  • cpe:2.3:h:abb:pm572:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ABB
Show 2 more CPE
CPEVersionsRoleVendor
cpe:2.3:o:abb:pm573_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableABB
cpe:2.3:h:abb:pm573:-:*:*:*:*:*:*:*not specified by NVDRunning onABB
  • cpe:2.3:o:abb:pm573_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·ABB
  • cpe:2.3:h:abb:pm573:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·ABB

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-24686
  2. 2026-10-03 Alias added: GHSA-9f9p-5j8g-3cmm

References

Advisory 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences