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. 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?

No patch is currently available for CVE-2026-23288. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

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

Not yet patched

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. No fixed version recorded yet.

Affected from

≥ 6.19.4

References

The following references provide additional information about CVE-2026-23288 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
https://git.kernel.org/stable/c/1110a949675ebd56b3f0286e664ea543f745801c
Patch
Kernel patch commit
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

Not yet patched

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 . 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?

No patch is currently available for CVE-2026-23288. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
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.
What is Out-of-bounds Read (CWE-125)?

The product reads data past the end or before the beginning of the intended buffer. View CWE-125 on MITRE CWE →