How severe is CVE-2021-27483?

CVE-2021-27483 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-27483 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.

What products are affected by CVE-2021-27483?

CVE-2021-27483 affects Zoll Defibrillator Dashboard. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-27483?

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.

When was CVE-2021-27483 published?

CVE-2021-27483 was published on 2021-06-16 and last updated on 2026-06-17.

CVE-2021-27483

CVE-2021-27483 is a high-severity vulnerability in Zoll Defibrillator Dashboard with a CVSS 3.x base score of 7.8. 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-732.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 4.6
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-732
Affected product: Zoll Defibrillator Dashboard
Published: 2021-06-16
Last modified: 2026-06-17

Description

ZOLL Defibrillator Dashboard, v prior to 2.2,The affected products contain insecure filesystem permissions that could allow a lower privilege user to escalate privileges to an administrative level user.

Frequently asked questions

What is CVE-2021-27483?: ZOLL Defibrillator Dashboard, v prior to 2.2,The affected products contain insecure filesystem permissions that could allow a lower privilege user to escalate privileges to an administrative level user.
How severe is CVE-2021-27483?: CVE-2021-27483 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-27483 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.
What products are affected by CVE-2021-27483?: CVE-2021-27483 affects Zoll Defibrillator Dashboard. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-27483?: 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.
When was CVE-2021-27483 published?: CVE-2021-27483 was published on 2021-06-16 and last updated on 2026-06-17.

References

https://us-cert.cisa.gov/ics/advisories/icsma-21-161-01

Affected products (1)

cpe:2.3:a:zoll:defibrillator_dashboard:*:*:*:*:*:*:*:*

More vulnerabilities in Zoll Defibrillator Dashboard

CVE-2021-27489 — High (CVSS 8.8): ZOLL Defibrillator Dashboard, v prior to 2.2, The web application allows a non-administrative user to upload a…
CVE-2021-27485 — High (CVSS 7.5): ZOLL Defibrillator Dashboard, v prior to 2.2,The application allows users to store their passwords in a recoverable…
CVE-2021-27487 — Medium (CVSS 5.5): ZOLL Defibrillator Dashboard, v prior to 2.2, The affected products contain credentials stored in plaintext. This could…
CVE-2021-27481 — Medium (CVSS 5.5): ZOLL Defibrillator Dashboard, v prior to 2.2, The affected products utilize an encryption key in the data exchange…
CVE-2021-27479 — Medium (CVSS 5.4): ZOLL Defibrillator Dashboard, v prior to 2.2,The affected product’s web application could allow a low privilege user…

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