CVE-2022-21167: All versions of package masuit.tools.core are vulnerable to Arbitrary Code Execution via the ReceiveVarData<T>

This month

HIGH 7.5MITIGATE

CVE-2022-21167 is a high-severity flaw (CVSS 7.5) affecting masuit.tools. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

All versions of package masuit.tools.core are vulnerable to Arbitrary Code Execution via the ReceiveVarData<T> function in the SocketClient.cs component. The socket client in the package can pass in the payload via the user-controllable input after it has been established, because this socket client transmission does not have the appropriate restrictions or type bindings for the BinaryFormatter.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.5% (top 27%)
CISA exploited list	No
Published	2022-05-01
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: ldqk

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

Am I affected?

Timeline

2022-05-01 16:15 UTCPublished CVE record published
2026-06-17 04:25 UTCUpdated Record last modified

ldqk masuit.tools MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy masuit.tools || rpm -q masuit.tools || masuit.tools --version

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2022-21167?

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

Is CVE-2022-21167 being exploited?

CVE-2022-21167 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-2022-21167 affect?

CVE-2022-21167 affects masuit.tools. Severity is high (CVSS 7.5). All versions of package masuit.tools.core are vulnerable to Arbitrary Code Execution via the ReceiveVarData<T> function in the SocketClient.cs component. The socket client in the package can pass in the payload via the user-controllable inp

How urgent is CVE-2022-21167?

Priority 45/100. High severity

References

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