CVE-2026-80709

CVE-2026-80709

High · published August 28, 2026

CVSS v3.1
7.8
EPSS
0%
Percentile
6.8
In the wild
Unconfirmed
What it is

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

s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs

There is a wrong upper limit check for the domain value when an EP11

CPRB is processed for sending to a crypto card. This check is only

active on custom device nodes but may lead to access heap memory

behind perms->adm when an administrative CPRB is sent.

Add correct limit (AP_DOMAINS = 256) checking to fix this.

The record
Technical detail
CVSS v3.1
7.8 · HIGH
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.00176 · 6.8th percentile
Published
2026-08-28T12:16Z
References (6)
https://git.kernel.org/stable/c/1223477ca88e2396eca440919d0ca8754df79bd5 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/13e53d6ae1c3b2ff1be75b9ef09be26f4ec3ce15 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4589f742718d0256ea6dd1f5a78be6e689bdb8aa · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/672b12940e3f1336dfed5287412a71500adf2a76 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/983279d7f86ade73db86f886e09172dd567031b5 · 416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b505dcc8307d64468b463dfad45a03bf865c637e · 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS history
Timeline
  • 28 AUG 06:53Z
    s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs
    cvelistv5