CVE-2022-36563: Incorrect access control in the install directory (C:\RailsInstaller) of Rubyinstaller2 v3.1.2 and below allow

Q: How do I fix CVE-2022-36563?

rubyinstaller2: upgrade to newer than 3.1.2. Exact commands for each OS are on this page.

Q: Is CVE-2022-36563 being exploited?

CVE-2022-36563 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-2022-36563 affect?

CVE-2022-36563 affects rubyinstaller2. Severity is high (CVSS 8.8). Incorrect access control in the install directory (C:\RailsInstaller) of Rubyinstaller2 v3.1.2 and below allows authenticated attackers to execute arbitrary code via overwriting binaries located in the directory.

This month

HIGH 8.8UPGRADE

CVE-2022-36563 is a high-severity flaw (CVSS 8.8) affecting rubyinstaller2. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Incorrect access control in the install directory (C:\RailsInstaller) of Rubyinstaller2 v3.1.2 and below allows authenticated attackers to execute arbitrary code via overwriting binaries located in the directory.

Why this priority

High severity

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	1.2% (top 32%)
CISA exploited list	No
Published	2022-08-30
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: rubyinstaller

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

Am I affected?

Timeline

2022-08-30 21:15 UTCPublished CVE record published
2026-06-17 04:53 UTCUpdated Record last modified

rubyinstaller rubyinstaller2 UPGRADE

Affected: <= 3.1.2

Fixed in: newer than 3.1.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy rubyinstaller2 || rpm -q rubyinstaller2 || rubyinstaller2 --version

2. UPGRADE to newer than 3.1.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rubyinstaller2

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rubyinstaller2

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-2022-36563?

rubyinstaller2: upgrade to newer than 3.1.2. Exact commands for each OS are on this page.

Is CVE-2022-36563 being exploited?

CVE-2022-36563 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-2022-36563 affect?

CVE-2022-36563 affects rubyinstaller2. Severity is high (CVSS 8.8). Incorrect access control in the install directory (C:\RailsInstaller) of Rubyinstaller2 v3.1.2 and below allows authenticated attackers to execute arbitrary code via overwriting binaries located in the directory.

How urgent is CVE-2022-36563?

Priority 48/100. High severity

Related CVEs

CVE-2022-36562 HIGH 8.8 UPGRADE Incorrect access control in the install directory (C:\Ruby31-x64) of Rubyinstaller2 v3.1.2 and below allows au

References

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