CVE-2026-41477Public exploit

SYSTEM command execution via unauthenticated named pipe

Published Apr 24, 2026 · Updated Apr 24, 2026

Missing authentication in the Deskflow daemon 1.20.0 through 1.26.0.160 allows local users to execute commands as SYSTEM through IPC. IpcServer.cpp enables WorldAccessOption on the deskflow-daemon pipe, while DaemonIpcServer.cpp accepts command, elevate, and start messages without authentication or authorization. Local users with ordinary Windows accounts can reach the pipe; MSWindowsWatchdog.cpp launches the supplied command using a duplicated winlogon.exe SYSTEM token, enabling full host compromise.

CVSS severity7.8
High
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in the Deskflow daemon 1.20.0 through 1.26.0.160 allows local users to execute commands as SYSTEM through IPC. IpcServer.cpp enables WorldAccessOption on the deskflow-daemon pipe, while DaemonIpcServer.cpp accepts command, elevate, and start messages without authentication or authorization. Local users with ordinary Windows accounts can reach the pipe; MSWindowsWatchdog.cpp launches the supplied command using a duplicated winlogon.exe SYSTEM token, enabling full host compromise.

The record

CVE
CVE-2026-41477
Published
Apr 24, 2026
Updated
Apr 24, 2026
Vendor
Deskflow
Product
Deskflow
Classifications
CWE-306, CWE-862, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 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=<= 1.20.0
  2. Affected versionversion=<= 1.26.0.134

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Deskflow · Deskflowversion=<= 1.20.0; version=<= 1.26.0.134

Published CVSS scores

7.8GitHub, Inc.CVSS:3.1/AV:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
CWE-862Missing Authorization
T1068Exploitation for Privilege Escalation

Public exploit references

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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