Devolutions PowerShell Universal up to 2026.1.3 gRPC Service authorization

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability was found in Devolutions PowerShell Universal up to 2026.1.3. It has been classified as critical. Affected is an unknown function of the component gRPC Service. Performing a manipulation results in authorization. This vulnerability is known as CVE-2026-4064. Remote exploitation of the attack is possible. No exploit is available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical has been found in Devolutions PowerShell Universal up to 2026.1.3. This affects an unknown code block of the component gRPC Service. The manipulation with an unknown input leads to a authorization vulnerability. CWE is classifying the issue as CWE-862. The product does not perform an authorization check when an actor attempts to access a resource or perform an action. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

Missing authorization checks on multiple gRPC service endpoints in PowerShell Universal before 2026.1.4 allows an authenticated user with any valid token to bypass role-based access controls and perform privileged operations — including reading sensitive data, creating or deleting resources, and disrupting service operations — via crafted gRPC requests.

The advisory is shared at devolutions.net. This vulnerability is uniquely identified as CVE-2026-4064 since 03/12/2026. The exploitability is told to be easy. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available.

Upgrading to version 2026.1.4 eliminates this vulnerability.

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.1

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

ADP CISA Base Score: 8.3
ADP CISA Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Authorization
CWE: CWE-862 / CWE-863 / CWE-285
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: PowerShell Universal 2026.1.4

Timelineinfo

03/12/2026 CVE reserved
03/18/2026 +6 days Advisory disclosed
03/18/2026 +0 days VulDB entry created
03/21/2026 +3 days VulDB entry last update

Sourcesinfo

Advisory: DEVO-2026-0008
Status: Confirmed

CVE: CVE-2026-4064 (🔒)
GCVE (CVE): GCVE-0-2026-4064
GCVE (VulDB): GCVE-100-351405

Entryinfo

Created: 03/18/2026 02:28
Updated: 03/21/2026 22:11
Changes: 03/18/2026 02:28 (64), 03/21/2026 22:11 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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