Linux Kernel CVE Statistics

11 Linux Kernel CVEs in April 2021

Full month · Source: NIST NVD

March 2021 May 2021

In April 2021, 11 Linux kernel CVEs were published, sourced from the NIST National Vulnerability Database. Of these, 4 were rated High severity and 7 Medium. No CVEs from this month have been confirmed as actively exploited via the CISA KEV catalog. April's 11 CVEs represent 7% of all 2021 Linux kernel CVEs , down from March's 31 (a 65% month-over-month decrease) .

11
Total CVEs
0
Critical
4
High
7
Medium
0
Low
0
KEV Exploited
All CVEs — April 2021 11 CVEs
All (11) Critical (0) High (4) Medium (7) Low (0)
CVE ID Package Severity CVSS Published Description
CVE-2021-29154 linux High 7.8 2021-04-08 BPF JIT compilers in the Linux kernel through 5.11.12 have incorrect computation of branch displacements, allowing them…
CVE-2020-36313 linux High 7.8 2021-04-07 An issue was discovered in the Linux kernel before 5.7. The KVM subsystem allows out-of-range access to memslots after …
CVE-2021-3506 linux High 7.1 2021-04-19 An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in version…
CVE-2021-23133 linux High 7.0 2021-04-22 A race condition in Linux kernel SCTP sockets (net/sctp/socket.c) before 5.12-rc8 can lead to kernel privilege escalati…
CVE-2021-30002 linux Medium 6.2 2021-04-02 An issue was discovered in the Linux kernel before 5.11.3 when a webcam device exists. video_usercopy in drivers/media/…
CVE-2021-29155 linux Medium 5.5 2021-04-20 An issue was discovered in the Linux kernel through 5.11.x. kernel/bpf/verifier.c performs undesirable out-of-bounds sp…
CVE-2020-36322 linux Medium 5.5 2021-04-14 An issue was discovered in the FUSE filesystem implementation in the Linux kernel before 5.10.6, aka CID-5d069dbe8aaf. …
CVE-2020-36311 linux Medium 5.5 2021-04-07 An issue was discovered in the Linux kernel before 5.9. arch/x86/kvm/svm/sev.c allows attackers to cause a denial of se…
CVE-2021-30178 linux Medium 5.5 2021-04-07 An issue was discovered in the Linux kernel through 5.11.11. synic_get in arch/x86/kvm/hyperv.c has a NULL pointer dere…
CVE-2020-36312 linux Medium 5.5 2021-04-07 An issue was discovered in the Linux kernel before 5.8.10. virt/kvm/kvm_main.c has a kvm_io_bus_unregister_dev memory l…
CVE-2020-36310 linux Medium 5.5 2021-04-07 An issue was discovered in the Linux kernel before 5.8. arch/x86/kvm/svm/svm.c allows a set_memory_region_test infinite…

Frequently Asked Questions

How many Linux kernel CVEs were published in April 2021?

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

How does April 2021 compare to other months?

April 2021's 11 CVEs represent 7% of all 2021 Linux kernel CVEs. Compared to March's 31 CVEs, this was a 65% decrease month-over-month. View the full 2021 breakdown →

March 2021 2021 statistics May 2021