How severe is CVE-2020-36877?

CVE-2020-36877 has a CVSS 4.0 base score of 9.3, rated critical severity.

Is CVE-2020-36877 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2020-36877?

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.

Does CVE-2020-36877 have an EU (EUVD) identifier?

Yes. CVE-2020-36877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30827.

When was CVE-2020-36877 published?

CVE-2020-36877 was published on 2025-12-05 and last updated on 2026-06-17.

CVE-2020-36877

CVE-2020-36877 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.3. 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-78.

Key facts

Severity: Critical (CVSS 4.0 base score 9.3)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-30827
Weakness: CWE-78
Published: 2025-12-05
Last modified: 2026-06-17

Description

ReQuest Serious Play F3 Media Server 7.0.3 contains an unauthenticated remote code execution vulnerability that allows attackers to execute arbitrary commands as the web server user. Attackers can upload PHP executable files via the Quick File Uploader page, resulting in remote code execution on the server.

Frequently asked questions

What is CVE-2020-36877?: ReQuest Serious Play F3 Media Server 7.0.3 contains an unauthenticated remote code execution vulnerability that allows attackers to execute arbitrary commands as the web server user. Attackers can upload PHP executable files via the Quick File Uploader page, resulting in remote code execution on the server.
How severe is CVE-2020-36877?: CVE-2020-36877 has a CVSS 4.0 base score of 9.3, rated critical severity.
Is CVE-2020-36877 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2020-36877?: 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.
Does CVE-2020-36877 have an EU (EUVD) identifier?: Yes. CVE-2020-36877 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30827.
When was CVE-2020-36877 published?: CVE-2020-36877 was published on 2025-12-05 and last updated on 2026-06-17.

References

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