CVE-2026-41477: Deskflow is a keyboard and mouse sharing app

Routine

HIGH 7.8UPGRADE

CVE-2026-41477 is a high-severity flaw (CVSS 7.8) affecting deskflow. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Deskflow is a keyboard and mouse sharing app. In 1.20.0, 1.26.0.134, and earlier, Deskflow daemon runs as SYSTEM and exposes an IPC named pipe with WorldAccessOption enabled. The daemon processes privileged commands without authentication, allowing any local unprivileged user to execute arbitrary commands as SYSTEM. Affects both stable v1.20.0 + and Continuous v1.26.0.134 prerelease.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-306, CWE-862
Published	2026-04-24
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: deskflow

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-24 20:16 UTCPublished CVE record published
2026-06-17 10:46 UTCUpdated Record last modified

deskflow deskflow UPGRADE

Affected: >= 1.20.0 and <= 1.26.0.161

Fixed in: newer than 1.26.0.161

Safe to downgrade to: a release before 1.20.0

1. Check installed version

apt-cache policy deskflow || rpm -q deskflow || deskflow --version

2. UPGRADE to newer than 1.26.0.161 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade deskflow

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade deskflow

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.20.0 (Debian / Ubuntu)

apt-cache madison deskflow sudo apt install deskflow=<VERSION_BEFORE_1.20.0> sudo apt-mark hold deskflow

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list deskflow sudo dnf downgrade deskflow-<VERSION_BEFORE_1.20.0> sudo dnf versionlock add deskflow

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-41477?

deskflow: upgrade to newer than 1.26.0.161. Exact commands for each OS are on this page.

Is CVE-2026-41477 being exploited?

CVE-2026-41477 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-41477 affect?

CVE-2026-41477 affects deskflow. Severity is high (CVSS 7.8). Deskflow is a keyboard and mouse sharing app. In 1.20.0, 1.26.0.134, and earlier, Deskflow daemon runs as SYSTEM and exposes an IPC named pipe with WorldAccessOption enabled. The daemon processes privileged commands without authentication,

How urgent is CVE-2026-41477?

Priority 35/100. High severity; Public exploit reference

Related CVEs

CVE-2026-41476 HIGH 8.8 UPGRADE Deskflow is a keyboard and mouse sharing app

References

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