CVE-2021-3659
MEDIUM
5.5
CVSS Score
Published: August 22, 2022 at 02:49 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
18 products affected across 3 vendorsLinux KernelFedoraEnterprise Linux
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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
Description
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.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
95%
v < 5.12
Affected range stops below 5.12, so it looks safe — our inference, not a vendor statement
All versions
redhat-enterprise-linux (environment) · redhat-enterprise-linux-eus (environment) · redhat-enterprise-linux-for-power-little-endian (environment) · redhat-enterprise-linux-for-power-little-endian-eus (environment)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (3)
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://access.redhat.com/security/cve/CVE-2021-3659x_refsource_MISCIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1975949x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1165affd484889d4986cf3b724318935a0b120d8CVSS
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-252CWE-476
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