Linux Kernel CVE Statistics

5 Linux Kernel CVEs in November 2021

Full month · Source: NIST NVD

October 2021 December 2021

In November 2021, 5 Linux kernel CVEs were published, sourced from the NIST National Vulnerability Database. Of these, 1 was rated Critical, 0 were rated High severity and 4 Medium. No CVEs from this month have been confirmed as actively exploited via the CISA KEV catalog. November's 5 CVEs represent 3% of all 2021 Linux kernel CVEs , down from October's 7 (a 29% month-over-month decrease) .

5
Total CVEs
1
Critical
0
High
4
Medium
0
Low
0
KEV Exploited
All CVEs — November 2021 5 CVEs
All (5) Critical (1) High (0) Medium (4) Low (0)
CVE ID Package Severity CVSS Published Description
CVE-2021-43267 linux Critical 9.8 2021-11-02 An issue was discovered in net/tipc/crypto.c in the Linux kernel before 5.14.16. The Transparent Inter-Process Communic…
CVE-2021-43975 linux Medium 6.7 2021-11-17 In the Linux kernel through 5.15.2, hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_ut…
CVE-2021-43389 linux Medium 5.5 2021-11-04 An issue was discovered in the Linux kernel before 5.14.15. There is an array-index-out-of-bounds flaw in the detach_ca…
CVE-2020-27820 linux Medium 4.7 2021-11-03 A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if rem…
CVE-2021-43976 linux Medium 4.6 2021-11-17 In the Linux kernel through 5.15.2, mwifiex_usb_recv in drivers/net/wireless/marvell/mwifiex/usb.c allows an attacker (…

Frequently Asked Questions

How many Linux kernel CVEs were published in November 2021?

5 Linux kernel CVEs were published in November 2021, sourced from the NIST National Vulnerability Database. Of these, 1 was rated Critical severity, 0 High, and 4 Medium.

How does November 2021 compare to other months?

November 2021's 5 CVEs represent 3% of all 2021 Linux kernel CVEs. Compared to October's 7 CVEs, this was a 29% decrease month-over-month. View the full 2021 breakdown →

October 2021 2021 statistics December 2021