Linux Kernel CVE Statistics

7 Linux Kernel CVEs in October 2021

Full month · Source: NIST NVD

September 2021 November 2021

In October 2021, 7 Linux kernel CVEs were published, sourced from the NIST National Vulnerability Database. Of these, 4 were rated High severity and 3 Medium. No CVEs from this month have been confirmed as actively exploited via the CISA KEV catalog. October's 7 CVEs represent 4% of all 2021 Linux kernel CVEs , up from September's 5 (a 40% month-over-month increase) .

7
Total CVEs
0
Critical
4
High
3
Medium
0
Low
0
KEV Exploited
All CVEs — October 2021 7 CVEs
All (7) Critical (0) High (4) Medium (3) Low (0)
CVE ID Package Severity CVSS Published Description
CVE-2021-43057 linux High 7.8 2021-10-28 An issue was discovered in the Linux kernel before 5.14.8. A use-after-free in selinux_ptrace_traceme (aka the SELinux …
CVE-2021-42252 linux High 7.8 2021-10-11 An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14…
CVE-2021-42008 linux High 7.8 2021-10-05 The decode_data function in drivers/net/hamradio/6pack.c in the Linux kernel before 5.13.13 has a slab out-of-bounds wr…
CVE-2021-41864 linux High 7.8 2021-10-02 prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to tr…
CVE-2021-42327 linux Medium 6.7 2021-10-21 dp_link_settings_write in drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c in the Linux kernel through 5.14.14…
CVE-2021-42739 linux Medium 6.7 2021-10-20 The firewire subsystem in the Linux kernel through 5.14.13 has a buffer overflow related to drivers/media/firewire/fire…
CVE-2021-43056 linux Medium 5.5 2021-10-28 An issue was discovered in the Linux kernel for powerpc before 5.14.15. It allows a malicious KVM guest to crash the ho…

Frequently Asked Questions

How many Linux kernel CVEs were published in October 2021?

7 Linux kernel CVEs were published in October 2021, sourced from the NIST National Vulnerability Database. Of these, 0 were rated Critical severity, 4 High, and 3 Medium.

How does October 2021 compare to other months?

October 2021's 7 CVEs represent 4% of all 2021 Linux kernel CVEs. Compared to September's 5 CVEs, this was a 40% increase month-over-month. View the full 2021 breakdown →

September 2021 2021 statistics November 2021