CVE-2020-12493

Name: CVE-2020-12493
Creator: NVD / NIST
Published: 2020-05-29T18:15:11.127+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

CRITICALCVSS 10/10EPSS 1.40%

Last modified Jun 17, 2026

CVE-2020-12493 is a critical-severity vulnerability rated 10/10 on the CVSS scale. An open port used for debugging in SWARCOs CPU LS4000 Series with versions starting with G4... grants root access to the device without access control via network. EPSS estimates a 1.40% chance of exploitation in the next 30 days.

Description

An open port used for debugging in SWARCOs CPU LS4000 Series with versions starting with G4... grants root access to the device without access control via network. A malicious user could use this vulnerability to get access to the device and disturb operations with connected devices.

Metrics

CVSS 3.1

10/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

EPSS Probability

1.40%

69.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-284

Affected Software

Vendor	Product	Versions
Swarco	Cpu Ls4000 Firmware	g4

References

https://cert.vde.com/de-de/advisories/vde-2020-016Third Party Advisory
https://cert.vde.com/de-de/advisories/vde-2020-016Third Party Advisory

Timeline

Published: May 29, 2020
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2020-12493?

How severe is CVE-2020-12493?

CVE-2020-12493 has a CVSS score of 10/10 (CRITICAL severity). The EPSS model estimates a 1.40% probability of exploitation in the next 30 days.

How do I fix CVE-2020-12493?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-12493?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST