How severe is CVE-2022-21167?

CVE-2022-21167 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2022-21167 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-21167?

CVE-2022-21167 affects Ldqk Masuit.tools. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-21167?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2022-21167 published?

CVE-2022-21167 was published on 2022-05-01 and last updated on 2026-06-17.

CVE-2022-21167

CVE-2022-21167 is a high-severity vulnerability in Ldqk Masuit.tools with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 7.5
EPSS exploit prediction: 1% (68th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Ldqk Masuit.tools
Published: 2022-05-01
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2022-21167?: 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.
How severe is CVE-2022-21167?: CVE-2022-21167 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2022-21167 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (68th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-21167?: CVE-2022-21167 affects Ldqk Masuit.tools. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-21167?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-21167 published?: CVE-2022-21167 was published on 2022-05-01 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ldqk:masuit.tools:*:*:*:*:*:*:*:*