What is CVE-2021-3659?

CVE-2021-3659 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10. CVE-2021-3659 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-3659?

CVE-2021-3659 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2021-3659?

No patch is currently available for CVE-2021-3659. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-3659 actively exploited?

CVE-2021-3659 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-3659

Medium

A NULL pointer dereference flaw was found in the Linux kernel’s IEEE 802.15.4 wireless networking subsystem in the way the user closes the LR-WPAN connection. This flaw allows a local user to crash the system. The highest threat from this vulnerability is to system availability.

Package Linux Kernel

Published 2022-08-22

Last modified 2024-11-21

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-252

CVE-2021-3659 is classified as CWE-252

See CWE-252 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2021-3659 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Red Hat
https://access.redhat.com/security/cve/CVE-2021-3659

Third Party Advisory
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=1975949
Patch
Kernel patch commit
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1165affd484889d4986cf3b724318935a0b120d8
Patch

Details

CVE ID CVE-2021-3659

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2022-08-22

Modified 2024-11-21

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-3659?

CVE-2021-3659 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . CVE-2021-3659 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-3659?

CVE-2021-3659 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2021-3659?

No patch is currently available for CVE-2021-3659. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-3659 actively exploited?

No — CVE-2021-3659 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.