CVE-2026-41476: Deskflow is a keyboard and mouse sharing app

Q: How do I fix CVE-2026-41476?

deskflow: upgrade to 1.26.0.138. Exact commands for each OS are on this page.

Q: Is CVE-2026-41476 being exploited?

CVE-2026-41476 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-41476 affect?

CVE-2026-41476 affects deskflow. Severity is high (CVSS 8.8). Deskflow is a keyboard and mouse sharing app. Prior to 1.26.0.138, a remote memory-safety vulnerability in Deskflow's clipboard deserialization allows a connected peer to trigger an out-of-bounds read by sending a malformed clipboard updat

Q: How urgent is CVE-2026-41476?

Priority 43/100. High severity; Public exploit reference

This month

HIGH 8.8UPGRADE

CVE-2026-41476 is a high-severity flaw (CVSS 8.8) 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. Prior to 1.26.0.138, a remote memory-safety vulnerability in Deskflow's clipboard deserialization allows a connected peer to trigger an out-of-bounds read by sending a malformed clipboard update. The issue is in the implementation of src/lib/deskflow/IClipboard.cpp. This is reachable because ClipboardChunk::assemble() in src/lib/deskflow/ClipboardChunk.cpp validates only the outer clipboard transfer

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-120
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: < 1.26.0.138

Fixed in: 1.26.0.138

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.26.0.138 (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.

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-2026-41476?

deskflow: upgrade to 1.26.0.138. Exact commands for each OS are on this page.

Is CVE-2026-41476 being exploited?

CVE-2026-41476 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-2026-41476 affect?

CVE-2026-41476 affects deskflow. Severity is high (CVSS 8.8). Deskflow is a keyboard and mouse sharing app. Prior to 1.26.0.138, a remote memory-safety vulnerability in Deskflow's clipboard deserialization allows a connected peer to trigger an out-of-bounds read by sending a malformed clipboard updat

How urgent is CVE-2026-41476?

Priority 43/100. High severity; Public exploit reference

Related CVEs

CVE-2026-41477 HIGH 7.8 UPGRADE Deskflow is a keyboard and mouse sharing app

References

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