CVE-2026-16801Network attack vector

Authenticated PowerShell execution via unescaped variable values

Published Jul 24, 2026 · Updated Jul 24, 2026

Code injection in Devolutions PowerShell Universal 2026.2.2 and earlier allows remote authenticated users to execute PowerShell code. The variables feature writes crafted values into its PowerShell configuration file without proper escaping, causing the file to interpret them as code. Variable write permission is required, and successful injection grants arbitrary PowerShell execution with the server process's access.

CVSS severity8.7
High
EPSS probability0.29%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Devolutions PowerShell Universal 2026.2.2 and earlier allows remote authenticated users to execute PowerShell code. The variables feature writes crafted values into its PowerShell configuration file without proper escaping, causing the file to interpret them as code. Variable write permission is required, and successful injection grants arbitrary PowerShell execution with the server process's access.

The record

CVE
CVE-2026-16801
Published
Jul 24, 2026
Updated
Jul 24, 2026
Vendor
Ironman Software
Product
PowerShell Universal
Classifications
CWE-94, T1059.001
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 24, 2026Record 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=0 <2026.2.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Ironman Software · PowerShell Universalversion=0 <2026.2.3

Published CVSS scores

8.7DevolutionsCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
8.8CISA-ADPCVSS: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-94Improper Control of Generation of Code ('Code Injection')
T1059.001PowerShell

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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