Is CVE-2020-5847 in the CISA KEV catalog?

Yes. CVE-2020-5847 is on the CISA Known Exploited Vulnerabilities list, added 2021-11-03.

What is the CVSS severity of CVE-2020-5847?

CVE-2020-5847 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-5847?

CVE-2020-5847 has an EPSS score of 95.84% (100th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2020-5847

CRITICALCISA KEVEPSS 100th pctl

9.8

CVSS v3

NVD

Description

Unraid through 6.8.0 allows Remote Code Execution.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

95.84%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Unraid Remote Code Execution Vulnerability

Unraid contains a vulnerability due to the insecure use of the extract PHP function that can be abused to execute remote code as root. This CVE is chainable with CVE-2020-5849 for initial access.

Apply updates per vendor instructions.

Remediation due: 2022-05-03

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-03-17.