CVE-2026-80552

CVE-2026-80552

High · published August 26, 2026

CVSS v3.1
8.8
EPSS
0%
Percentile
6.7
In the wild
Unconfirmed
What it is

In the Linux kernel, the following vulnerability has been resolved:

s390/vfio_ccw: Ensure index for read/write regions are within range

The introduction of the capability chain rightly clamped the

region indexes to the range of the capabilities itself, but

neglected to do so for the existing read/write regions which

should also be enforced.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00176 · 6.7th percentile
Published
2026-08-26T19:17Z
References (7)
https://git.kernel.org/stable/c/3acbedf5c0b8e0971f0de423c05cc02bbf6ddb99 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/649badf3a2fd8929e40198603a2cb21b74c21700 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/79ea5e0c4c8a9842ae85f45062d947b3297dfc07 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/988d9b5be3c2c4baf9457ce8e11b477e13eb9fcf · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9f5f9a78fedc45bc29d6a0a64e3a3472361afae5 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d3b1e38404b22df5a1f93019f2bb656feaad5ae3 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d597fa1273802941c7801202135976fecc29672b · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 28 AUG 06:54Z
    EPSS moved — → 0%
    epss
  • 26 AUG 14:37Z
    s390/vfio_ccw: Ensure index for read/write regions are within range
    cvelistv5