How severe is CVE-2020-12493?

CVE-2020-12493 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-12493 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-12493?

CVE-2020-12493 affects Swarco Cpu Ls4000 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-12493?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-12493 published?

CVE-2020-12493 was published on 2020-05-29 and last updated on 2026-06-17.

CVE-2020-12493

CVE-2020-12493 is a critical-severity vulnerability in Swarco Cpu Ls4000 Firmware with a CVSS 3.x base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: Critical (CVSS 3.x base score 10.0)
CVSS v2: 10.0
EPSS exploit prediction: 1% (69th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Swarco Cpu Ls4000 Firmware
Published: 2020-05-29
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2020-12493?: 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.
How severe is CVE-2020-12493?: CVE-2020-12493 has a CVSS 3.x base score of 10.0, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-12493 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (69th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-12493?: CVE-2020-12493 affects Swarco Cpu Ls4000 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-12493?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-12493 published?: CVE-2020-12493 was published on 2020-05-29 and last updated on 2026-06-17.

References

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

Affected products (1)

cpe:2.3:o:swarco:cpu_ls4000_firmware:g4:*:*:*:*:*:*:*

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