CVSS 3.1
5.5 mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCVE-2021-3659
Medium (5.5). EPSS 0.3% chance of exploitation in the next 30 days.
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.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 19% of CVEs (scores of 2026-10-31)
- CWEs
- CWE-476, CWE-252
- Published
- Modified
- Record from
- the NVD, synced
Affected
- fedoraproject:fedora
- linux:linux_kernel
- redhat:codeready_linux_builder
- redhat:enterprise_linux
- redhat:enterprise_linux_for_ibm_z_systems
- redhat:enterprise_linux_for_ibm_z_systems_eus
- redhat:enterprise_linux_for_power_little_endian_eus
- redhat:enterprise_linux_for_real_time
- redhat:enterprise_linux_for_real_time_for_nfv
- redhat:enterprise_linux_for_real_time_for_nfv_tus
- redhat:enterprise_linux_for_real_time_tus
- redhat:enterprise_linux_server_aus
- redhat:enterprise_linux_server_eus
- redhat:enterprise_linux_server_tus
- redhat:virtualization_host
References
- https://access.redhat.com/security/cve/CVE-2021-3659
- https://bugzilla.redhat.com/show_bug.cgi?id=1975949
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=1165affd484889d4986cf3b724318935a0b120d8
- https://access.redhat.com/security/cve/CVE-2021-3659
- https://bugzilla.redhat.com/show_bug.cgi?id=1975949