How severe is CVE-2020-36879?

CVE-2020-36879 has a CVSS 4.0 base score of 8.5, rated high severity.

Is CVE-2020-36879 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2020-36879?

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

Does CVE-2020-36879 have an EU (EUVD) identifier?

Yes. CVE-2020-36879 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30825.

When was CVE-2020-36879 published?

CVE-2020-36879 was published on 2025-12-05 and last updated on 2026-06-17.

CVE-2020-36879

CVE-2020-36879 is a high-severity vulnerability with a CVSS 4.0 base score of 8.5. 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-428.

Key facts

Severity: High (CVSS 4.0 base score 8.5)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2020-30825
Weakness: CWE-428
Published: 2025-12-05
Last modified: 2026-06-17

Description

Flexsense DiskBoss 11.7.28 allows unauthenticated attackers to elevate their privileges using any of its services, enabling remote code execution during startup or reboot with escalated privileges. Attackers can exploit the unquoted service path vulnerability by specifying a malicious service name in the 'sc qc' command, allowing them to execute arbitrary system commands.

Frequently asked questions

What is CVE-2020-36879?: Flexsense DiskBoss 11.7.28 allows unauthenticated attackers to elevate their privileges using any of its services, enabling remote code execution during startup or reboot with escalated privileges. Attackers can exploit the unquoted service path vulnerability by specifying a malicious service name in the 'sc qc' command, allowing them to execute arbitrary system commands.
How severe is CVE-2020-36879?: CVE-2020-36879 has a CVSS 4.0 base score of 8.5, rated high severity.
Is CVE-2020-36879 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2020-36879?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2020-36879 have an EU (EUVD) identifier?: Yes. CVE-2020-36879 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2020-30825.
When was CVE-2020-36879 published?: CVE-2020-36879 was published on 2025-12-05 and last updated on 2026-06-17.

References

Other CWE-428 vulnerabilities

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CVE-2023-38408 — Critical (CVSS 9.8): The PKCS#11 feature in ssh-agent in OpenSSH before 9.3p2 has an insufficiently trustworthy search path, leading to…
CVE-2022-36344 — Critical (CVSS 9.8): An unquoted search path vulnerability exists in 'JustSystems JUST Online Update for J-License' bundled with multiple…
CVE-2020-9292 — Critical (CVSS 9.8): An unquoted service path vulnerability in the FortiSIEM Windows Agent component may allow an attacker to gain elevated…
CVE-2019-17658 — Critical (CVSS 9.8): An unquoted service path vulnerability in the FortiClient FortiTray component of FortiClientWindows v6.2.2 and prior…
CVE-2019-8459 — Critical (CVSS 9.8): Check Point Endpoint Security Client for Windows, with the VPN blade, before version E80.83, starts a process without…

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