Linux Kernel CVE Statistics

654 Linux Kernel CVEs in October 2025

Full month · Source: NIST NVD

September 2025 November 2025

In October 2025, 654 Linux kernel CVEs were published, sourced from the NIST National Vulnerability Database. Of these, 117 were rated High severity and 334 Medium. No CVEs from this month have been confirmed as actively exploited via the CISA KEV catalog. October's 654 CVEs represent 11% of all 2025 Linux kernel CVEs , down from September's 737 (a 11% month-over-month decrease) .

654
Total CVEs
0
Critical
117
High
334
Medium
2
Low
0
KEV Exploited
All CVEs — October 2025 654 CVEs
All (654) Critical (0) High (117) Medium (334) Low (2)
CVE ID Package Severity CVSS Published Description
CVE-2025-40106 linux Awaiting NVD 2025-10-31 In the Linux kernel, the following vulnerability has been resolved: comedi: fix divide-by-zero in comedi_buf_munge() Th…
CVE-2025-40087 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: NFSD: Define a proc_layoutcommit for the FlexFiles …
CVE-2025-40088 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: hfsplus: fix slab-out-of-bounds read in hfsplus_str…
CVE-2025-40093 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_ecm: Refactor bind path to use __fre…
CVE-2025-40100 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: btrfs: do not assert we found block group item when…
CVE-2025-40097 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: Fix missing pointer check in hda_compone…
CVE-2025-40089 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: cxl/features: Add check for no entries in cxl_featu…
CVE-2025-40095 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_rndis: Refactor bind path to use __f…
CVE-2025-40091 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: ixgbe: fix too early devlink_free() in ixgbe_remove…
CVE-2025-40098 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: ALSA: hda: cs35l41: Fix NULL pointer dereference in…
CVE-2025-40092 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_ncm: Refactor bind path to use __fre…
CVE-2025-40102 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: KVM: arm64: Prevent access to vCPU events before in…
CVE-2025-40105 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: vfs: Don't leak disconnected dentries on umount Whe…
CVE-2025-40086 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: drm/xe: Don't allow evicting of BOs in same VM in a…
CVE-2025-40094 linux Awaiting NVD 2025-10-30 In the Linux kernel, the following vulnerability has been resolved: usb: gadget: f_acm: Refactor bind path to use __fre…

Frequently Asked Questions

How many Linux kernel CVEs were published in October 2025?

654 Linux kernel CVEs were published in October 2025, sourced from the NIST National Vulnerability Database. Of these, 0 were rated Critical severity, 117 High, and 334 Medium. 201 CVEs are still awaiting NVD severity scoring.

How does October 2025 compare to other months?

October 2025's 654 CVEs represent 11% of all 2025 Linux kernel CVEs. Compared to September's 737 CVEs, this was a 11% decrease month-over-month. View the full 2025 breakdown →

September 2025 2025 statistics November 2025