CVE-2025-66576: Remote Keyboard Desktop 1.0.1 enables remote attackers to execute system commands via the rundll32.exe exporte

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2025-66576 is a critical-severity flaw (CVSS 9.8) affecting remote keyboard desktop. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Remote Keyboard Desktop 1.0.1 enables remote attackers to execute system commands via the rundll32.exe exported function export, allowing unauthenticated code execution.

Why this priority

Critical severity
Public exploit reference
CISA SSVC: automatable with total technical impact
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.3% (top 31%)
CISA exploited list	No
Weakness	CWE-78
Published	2025-12-04
Last modified	2026-10-18

Publisher (CNA): VulnCheck · Vendor: remotecontrolio

Last updated 2026-10-18 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-12-04 21:16 UTCPublished CVE record published
2026-10-18 15:10 UTCUpdated Record last modified

remotecontrolio remote keyboard desktop DOWNGRADE

Affected: 1.0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0.1

1. Check installed version

apt-cache policy remote-keyboard-desktop || rpm -q remote-keyboard-desktop || remote-keyboard-desktop --version

2. No fixed release: DOWNGRADE to a release before 1.0.1 (Debian / Ubuntu)

apt-cache madison remote-keyboard-desktop sudo apt install remote-keyboard-desktop=<VERSION_BEFORE_1.0.1> sudo apt-mark hold remote-keyboard-desktop

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list remote-keyboard-desktop sudo dnf downgrade remote-keyboard-desktop-<VERSION_BEFORE_1.0.1> sudo dnf versionlock add remote-keyboard-desktop

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.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · legofy · FIXED · 1.0.0-43.20261028git6913585.fc46 · FEDORA-2026-e1e60e1e32 · source

sudo dnf upgrade --advisory=FEDORA-2026-e1e60e1e32

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Write-up: www.exploit-db.com/exploits/52299

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-2025-66576?

remote keyboard desktop: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-66576 being exploited?

CVE-2025-66576 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-2025-66576 affect?

CVE-2025-66576 affects remote keyboard desktop. Severity is critical (CVSS 9.8). Remote Keyboard Desktop 1.0.1 enables remote attackers to execute system commands via the rundll32.exe exported function export, allowing unauthenticated code execution.

How urgent is CVE-2025-66576?

Priority 65/100. Critical severity; Public exploit reference; CISA SSVC: automatable with total technical impact; Remotely exploitable, no login, no user action

References

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