CVE-2021-47850: Mini Mouse 9.2.0 contains a path traversal vulnerability that allows remote attackers to access arbitrary syst

This week

HIGH 7.5REMOTEDOWNGRADE

CVE-2021-47850 is a high-severity flaw (CVSS 7.5) affecting mini mouse. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Mini Mouse 9.2.0 contains a path traversal vulnerability that allows remote attackers to access arbitrary system files and directories through crafted HTTP requests. Attackers can retrieve sensitive files like win.ini and list contents of system directories such as C:\Users\Public by manipulating file and path parameters.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.4% (top 29%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-01-21
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: yodinfo

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

Am I affected?

Timeline

2026-01-21 18:16 UTCPublished CVE record published
2026-06-17 04:18 UTCUpdated Record last modified

yodinfo mini mouse DOWNGRADE

Affected: 9.2.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 9.2.0

1. Check installed version

apt-cache policy mini-mouse || rpm -q mini-mouse || mini-mouse --version

2. No fixed release: DOWNGRADE to a release before 9.2.0 (Debian / Ubuntu)

apt-cache madison mini-mouse sudo apt install mini-mouse=<VERSION_BEFORE_9.2.0> sudo apt-mark hold mini-mouse

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

dnf --showduplicates list mini-mouse sudo dnf downgrade mini-mouse-<VERSION_BEFORE_9.2.0> sudo dnf versionlock add mini-mouse

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-2021-47850?

mini mouse: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-47850 being exploited?

CVE-2021-47850 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-2021-47850 affect?

CVE-2021-47850 affects mini mouse. Severity is high (CVSS 7.5). Mini Mouse 9.2.0 contains a path traversal vulnerability that allows remote attackers to access arbitrary system files and directories through crafted HTTP requests. Attackers can retrieve sensitive files like win.ini and list contents of s

How urgent is CVE-2021-47850?

Priority 54/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-47851 CRITICAL 9.8 DOWNGRADE Mini Mouse 9.2.0 contains a remote code execution vulnerability that allows attackers to execute arbitrary com
CVE-2021-47849 MEDIUM 6.2 DOWNGRADE Mini Mouse 9.3.0 contains a path traversal vulnerability that allows attackers to access sensitive system dire

References

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