CVE-2021-3784: Garuda Linux performs an insecure user creation and authentication that allows any user to impersonate the cre

Routine

MEDIUM 5.3WATCHLISTMITIGATE

CVE-2021-3784 is a medium-severity flaw (CVSS 5.3) affecting garuda linux. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Garuda Linux performs an insecure user creation and authentication that allows any user to impersonate the created account. By creating users from the 'Garuda settings manager', an insecure procedure is performed that keeps the created user without an assigned password during some seconds. This could allow a potential attacker to exploit this vulnerability in order to authenticate without knowing the password.

Why this priority

On your watchlist

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

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 95%)
CISA exploited list	No
Weakness	CWE-287
Published	2023-10-04
Last modified	2026-06-17

Publisher (CNA): Spanish National Cybersecurity Institute, S.A. (INCIBE) · Vendor: garudalinux

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

Am I affected?

Timeline

2023-10-04 16:15 UTCPublished CVE record published
2026-06-17 04:05 UTCUpdated Record last modified

garudalinux garuda linux MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2021-3784?

garuda linux: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-3784 being exploited?

CVE-2021-3784 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-2021-3784 affect?

CVE-2021-3784 affects garuda linux. Severity is medium (CVSS 5.3). Garuda Linux performs an insecure user creation and authentication that allows any user to impersonate the created account. By creating users from the 'Garuda settings manager', an insecure procedure is performed that keeps the created user

How urgent is CVE-2021-3784?

Priority 25/100. On your watchlist

References

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