How severe is CVE-2021-47662?

CVE-2021-47662 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-47662 being actively exploited?

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

How do I fix CVE-2021-47662?

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-2021-47662 have an EU (EUVD) identifier?

Yes. CVE-2021-47662 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12116.

When was CVE-2021-47662 published?

CVE-2021-47662 was published on 2025-04-24 and last updated on 2026-06-17.

CVE-2021-47662

CVE-2021-47662 is a high-severity vulnerability with a CVSS 3.x base score of 7.5. 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-862.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 0% (30th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-12116
Weakness: CWE-862
Published: 2025-04-24
Last modified: 2026-06-17

Description

Due to missing authorization an unauthenticated remote attacker can cause a DoS attack by connecting via HTTPS and triggering the shutdown button.

Frequently asked questions

What is CVE-2021-47662?: Due to missing authorization an unauthenticated remote attacker can cause a DoS attack by connecting via HTTPS and triggering the shutdown button.
How severe is CVE-2021-47662?: CVE-2021-47662 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-47662 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (30th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2021-47662?: 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-2021-47662 have an EU (EUVD) identifier?: Yes. CVE-2021-47662 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-12116.
When was CVE-2021-47662 published?: CVE-2021-47662 was published on 2025-04-24 and last updated on 2026-06-17.

References

https://www.sciencedirect.com/science/article/pii/S2351978921001657

Other CWE-862 (Missing Authorization) vulnerabilities

CVE-2026-0092 — Critical (CVSS 10.0): In Package Manager, there is a possible device lock controller bypass due to a missing permission check. This could…
CVE-2026-33712 — Critical (CVSS 10.0): Typebot is a chatbot builder tool. In versions 3.15.2 and prior, the preview chat endpoint (POST…
CVE-2026-2031 — Critical (CVSS 10.0): An Improper Access Control vulnerability in several internal API endpoints for Google Cloud Application Integration…
CVE-2026-34976 — Critical (CVSS 10.0): Dgraph is an open source distributed GraphQL database. Prior to 25.3.1, the restoreTenant admin mutation is missing…
CVE-2025-30416 — Critical (CVSS 10.0): Sensitive data disclosure and manipulation due to missing authorization. The following products are affected: Acronis…
CVE-2025-45854 — Critical (CVSS 10.0): /server/executeExec of JEHC-BPM 2.0.1 allows attackers to execute arbitrary code via execParams.

Browse all CWE-862 (Missing Authorization) vulnerabilities →