CVE-2021-27483

Local privilege escalation via insecure filesystem permissions

Published Jun 16, 2021 · Updated Aug 3, 2024

Improper filesystem permissions in ZOLL Defibrillator Dashboard before 2.2 allow local users to gain administrative privileges. Public advisories identify the filesystem-permission locus but do not disclose the affected paths or the incorrect permission operation. Exploitation requires existing lower-privilege access and grants administrative control of the application host.

CVSS severity7.8
High
EPSS probability0.23%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper filesystem permissions in ZOLL Defibrillator Dashboard before 2.2 allow local users to gain administrative privileges. Public advisories identify the filesystem-permission locus but do not disclose the affected paths or the incorrect permission operation. Exploitation requires existing lower-privilege access and grants administrative control of the application host.

The record

CVE
CVE-2021-27483
Published
Jun 16, 2021
Updated
Aug 3, 2024
Vendor
ZOLL Medical Corporation
Product
Defibrillator Dashboard
Classifications
CWE-732, CWE-269, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 16, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions prior to 2.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

ZOLL Medical Corporation · Defibrillator Dashboardversion=All versions prior to 2.2

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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