What is CVE-2021-47347?

CVE-2021-47347 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10. CVE-2021-47347 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47347?

CVE-2021-47347 has a CVSS score of 8.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2021-47347?

No patch is currently available for CVE-2021-47347. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47347 actively exploited?

CVE-2021-47347 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47347

High

In the Linux kernel, the following vulnerability has been resolved: wl1251: Fix possible buffer overflow in wl1251_cmd_scan Function wl1251_cmd_scan calls memcpy without checking the length. Harden by checking the length is within the maximum allowed size.

Package Linux Kernel

Published 2024-05-21

Last modified 2025-04-02

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

8.8

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-120

CVE-2021-47347 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2021-47347 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/0f6c0488368c9ac1aa685821916fadba32f5d1ef
Patch
Kernel patch commit
https://git.kernel.org/stable/c/115103f6e3f1c26c473766c16439c7c8b235529a
Patch
Kernel patch commit
https://git.kernel.org/stable/c/302e2ee34c5f7c5d805b7f835d9a6f2b43474e2a
Patch

9 patch commits total View all on NVD

Details

CVE ID CVE-2021-47347

Severity High

CVSS score 8.8 / 10

CVSS version 3.1

Published 2024-05-21

Modified 2025-04-02

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47347?

CVE-2021-47347 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 . CVE-2021-47347 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47347?

CVE-2021-47347 has a CVSS score of 8.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2021-47347?

No patch is currently available for CVE-2021-47347. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47347 actively exploited?

No — CVE-2021-47347 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.