What is CVE-2026-23288?

CVE-2026-23288 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, classified as a Out-of-bounds Read flaw (CWE-125), affecting Linux kernel versions from 6.19.4 onward and patched in 6.19.7. CVE-2026-23288 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-23288?

CVE-2026-23288 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-23288?

Yes, CVE-2026-23288 has been patched. Fixed versions include 6.19.7. If you are running Linux kernel 6.19.4 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-23288 actively exploited?

CVE-2026-23288 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/125.html

CVE-2026-23288

High

In the Linux kernel, the following vulnerability has been resolved: accel/amdxdna: Fix out-of-bounds memset in command slot handling The remaining space in a command slot may be smaller than the size of the command header. Clearing the command header with memset() before verifying the available slot space can result in an out-of-bounds write and memory corruption. Fix this by moving the memset() call after the size validation.

Package Linux Kernel

Published 2026-03-25

Last modified 2026-05-29

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-125

CVE-2026-23288 is a Out-of-bounds Read vulnerability

What is Out-of-bounds Read?

The product reads data past the end or before the beginning of the intended buffer. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.19.4 and later are affected. Fixed in 6.19.7 and their respective stable series.

Affected from

≥ 6.19.4

Fixed in

✓ 6.19.7 6.19.x

References

2 total

Kernel Git
https://git.kernel.org/stable/c/1110a949675ebd56b3f0286e664ea543f745801c

Patch
Kernel Git
https://git.kernel.org/stable/c/cca770d710d5e03bc814af585cd6975eb6d74074

Patch

Details

CVE ID CVE-2026-23288

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-03-25

Modified 2026-05-29

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-23288?

CVE-2026-23288 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . It affects Linux kernel versions from 6.19.4 onward and has been patched in 6.19.7. CVE-2026-23288 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-23288?

CVE-2026-23288 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-23288?

Yes. CVE-2026-23288 has been patched. Fixed versions include 6.19.7. If you are running Linux kernel 6.19.4 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-23288 actively exploited?

No. CVE-2026-23288 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.