What is CVE-2021-47075?

CVE-2021-47075 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.3 out of 10, classified as a Memory Leak flaw (CWE-401). CVE-2021-47075 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47075?

CVE-2021-47075 has a CVSS score of 5.3 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Is there a patch available for CVE-2021-47075?

No patch is currently available for CVE-2021-47075. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47075 actively exploited?

CVE-2021-47075 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-2021-47075

Medium

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix memory leak in nvmet_alloc_ctrl() When creating ctrl in nvmet_alloc_ctrl(), if the cntlid_min is larger than cntlid_max of the subsystem, and jumps to the "out_free_changed_ns_list" label, but the ctrl->sqs lack of be freed. Fix this by jumping to the "out_free_sqs" label.

Package Linux Kernel

Published 2024-03-01

Last modified 2025-03-19

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.3

out of 10

Medium

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

Low

Vector string

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

Weakness type

CWE-401

CVE-2021-47075 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-2021-47075 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/4720f29acb3fe67aa8aa71e6b675b079d193aaeb
Patch
Kernel patch commit
https://git.kernel.org/stable/c/afb680ed7ecbb7fd66ddb43650e9b533fd8b4b9a
Patch
Kernel patch commit
https://git.kernel.org/stable/c/fec356a61aa3d3a66416b4321f1279e09e0f256f
Patch

Details

CVE ID CVE-2021-47075

Severity Medium

CVSS score 5.3 / 10

CVSS version 3.1

Published 2024-03-01

Modified 2025-03-19

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47075?

CVE-2021-47075 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.3 out of 10 , classified as a Memory Leak flaw (CWE-401) . CVE-2021-47075 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47075?

CVE-2021-47075 has a CVSS score of 5.3 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Is there a patch available for CVE-2021-47075?

No patch is currently available for CVE-2021-47075. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47075 actively exploited?

No — CVE-2021-47075 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 →