CVE-2021-42098Network attack vector

Permission bypass via unchecked Custom PowerShell edits

Published Oct 18, 2021 · Updated Aug 4, 2024

Incomplete authorization in Devolutions Remote Desktop Manager 2021.2.14 and earlier allows remote authenticated users to edit protected entries. The batch Custom PowerShell action checks entry permissions incompletely, allowing edits to fields that the user's assigned rights prohibit. Access to a shared data source and a low-privilege account are required; successful use bypasses entry-level edit restrictions.

CVSS severity8.8
High
EPSS probability1.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incomplete authorization in Devolutions Remote Desktop Manager 2021.2.14 and earlier allows remote authenticated users to edit protected entries. The batch Custom PowerShell action checks entry permissions incompletely, allowing edits to fields that the user's assigned rights prohibit. Access to a shared data source and a low-privilege account are required; successful use bypasses entry-level edit restrictions.

The record

CVE
CVE-2021-42098
Published
Oct 18, 2021
Updated
Aug 4, 2024
Vendor
Ironman Software
Product
Devolutions Remote Desktop Manager
Classifications
CWE-276, T1565.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 18, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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=2021.2.14 and earlier. Fixed in 2021.2.16.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ironman Software · Devolutions Remote Desktop Managerversion=2021.2.14 and earlier. Fixed in 2021.2.16.

Published CVSS scores

6.5NIST NVDAV:N/AC:L/Au:S/C:P/I:P/A:P
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions
T1565.001Stored Data Manipulation

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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