CVE-2022-50921: WOW21 5.0.1.9 contains an unquoted service path vulnerability that allows local attackers to potentially execu

Routine

HIGH 7.8DOWNGRADE

CVE-2022-50921 is a high-severity flaw (CVSS 7.8) affecting wow21. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

WOW21 5.0.1.9 contains an unquoted service path vulnerability that allows local attackers to potentially execute arbitrary code with elevated system privileges. Attackers can exploit the unquoted binary path to inject malicious executables that will be launched with LocalSystem permissions during service startup.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-428
Published	2026-01-13
Last modified	2026-06-17

Publisher (CNA): VulnCheck · Vendor: wow21

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

Am I affected?

Timeline

2026-01-13 23:15 UTCPublished CVE record published
2026-06-17 05:24 UTCUpdated Record last modified

wow21 wow21 DOWNGRADE

Affected: 5.0.1.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0.1.9

1. Check installed version

apt-cache policy wow21 || rpm -q wow21 || wow21 --version

2. No fixed release: DOWNGRADE to a release before 5.0.1.9 (Debian / Ubuntu)

apt-cache madison wow21 sudo apt install wow21=<VERSION_BEFORE_5.0.1.9> sudo apt-mark hold wow21

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

dnf --showduplicates list wow21 sudo dnf downgrade wow21-<VERSION_BEFORE_5.0.1.9> sudo dnf versionlock add wow21

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-2022-50921?

wow21: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2022-50921 being exploited?

CVE-2022-50921 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-2022-50921 affect?

CVE-2022-50921 affects wow21. Severity is high (CVSS 7.8). WOW21 5.0.1.9 contains an unquoted service path vulnerability that allows local attackers to potentially execute arbitrary code with elevated system privileges. Attackers can exploit the unquoted binary path to inject malicious executables

How urgent is CVE-2022-50921?

Priority 35/100. High severity; Public exploit reference

References

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