Vulnerability in Linux

CVE-2025-40081

In the Linux kernel, the following vulnerability has been resolved: perf: arm_spe: Prevent overflow in PERF_IDX2OFF() Cast nr_pages to unsigned long to avoid overflow when handling large AUX buffer sizes (>= 2 GiB).

EPSS: 0.001 (4.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Linux — versions d5d9696b03808bc6be723cc85288c912c3a05606, 4.15, 0

References

Frequently asked questions

What is CVE-2025-40081?
CVE-2025-40081 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2025-10-28.
How severe is CVE-2025-40081?
High severity. CVSS v3 base score is 7.8 out of 10.