What is CVE-2021-47031?

CVE-2021-47031 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.3 out of 10, classified as a Memory Leak flaw (CWE-401). CVE-2021-47031 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47031?

CVE-2021-47031 has a CVSS score of 4.3 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.

Is there a patch available for CVE-2021-47031?

No patch is currently available for CVE-2021-47031. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47031 actively exploited?

CVE-2021-47031 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2021-47031

Medium

In the Linux kernel, the following vulnerability has been resolved: mt76: mt7921: fix memory leak in mt7921_coredump_work Fix possible memory leak in mt7921_coredump_work.

Package Linux Kernel

Published 2024-02-28

Last modified 2025-03-19

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

4.3

out of 10

Medium

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Vector string

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Weakness type

CWE-401

CVE-2021-47031 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2021-47031 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/4811226374453607175ea057777faa7e7f752204
Patch
Kernel patch commit
https://git.kernel.org/stable/c/782b3e86ea970e899f8e723db9f64708a15ca30e
Patch

Details

CVE ID CVE-2021-47031

Severity Medium

CVSS score 4.3 / 10

CVSS version 3.1

Published 2024-02-28

Modified 2025-03-19

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47031?

CVE-2021-47031 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.3 out of 10 , classified as a Memory Leak flaw (CWE-401) . CVE-2021-47031 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47031?

CVE-2021-47031 has a CVSS score of 4.3 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Is there a patch available for CVE-2021-47031?

No patch is currently available for CVE-2021-47031. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47031 actively exploited?

No — CVE-2021-47031 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. View CWE-401 on MITRE CWE →