Vulnerability in Linux

CVE-2026-23280

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Prevent ubuf size overflow The ubuf size calculation may overflow, resulting in an undersized allocation and possible memory corruption. Use check_add_overflow() helpers to validate the size calculation before allocation.

Published · last modified .

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.

EPSS exploit prediction

EPSS: 0.001 (2.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 2nd percentile — 2.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-23280: held from 0.001 to 0.001.

EPSS over last 30 days · oldest: 0.001 · newest: 0.001 · change: 0.000

Affected products

  • Linux — versions bd72d4acda1069579b35123e3cc0b21ec1193a21, 6.18, 0
  • Linux Kernel — versions 7.0

References

Frequently asked questions

What is CVE-2026-23280?
CVE-2026-23280 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2026-03-25.
How severe is CVE-2026-23280?
High severity. CVSS v3 base score is 7.8 out of 10.