CVE-2026-16800Network attack vector

Authenticated PowerShell execution via crafted parameter names

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 arbitrary PowerShell code. The schedule builder concatenates crafted parameter names into a PowerShell script invocation without safely encoding them. Exploitation requires authentication and schedule creation permission, and successful injection runs code in the server's execution context.

CVSS severity7.7
High
EPSS probability0.30%
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 arbitrary PowerShell code. The schedule builder concatenates crafted parameter names into a PowerShell script invocation without safely encoding them. Exploitation requires authentication and schedule creation permission, and successful injection runs code in the server's execution context.

The record

CVE
CVE-2026-16800
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

7.7Devolutions Inc.CVSS:4.0/AV:N/AC:L/AT:P/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')
T1059.001Command and Scripting Interpreter: PowerShell

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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