What is CVE-2026-23315?

CVE-2026-23315 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10, classified as a Out-of-bounds Read flaw (CWE-125), affecting Linux kernel versions from 5.10 onward and patched in 6.1.167, 6.6.130, 6.12.77 and others. CVE-2026-23315 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-23315?

CVE-2026-23315 has a CVSS score of 7.1 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:N/A:H.

Is there a patch available for CVE-2026-23315?

Yes, CVE-2026-23315 has been patched. Fixed versions include 6.1.167, 6.6.130, 6.12.77 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-23315 actively exploited?

CVE-2026-23315 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-2026-23315

High

In the Linux kernel, the following vulnerability has been resolved: wifi: mt76: Fix possible oob access in mt76_connac2_mac_write_txwi_80211() Check frame length before accessing the mgmt fields in mt76_connac2_mac_write_txwi_80211 in order to avoid a possible oob access. [fix check to also cover mgmt->u.action.u.addba_req.capab, correct Fixes tag]

Package Linux Kernel

Published 2026-03-25

Last modified 2026-04-23

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-125

CVE-2026-23315 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 5.10 and later are affected. Fixed in 6.1.167, 6.6.130, 6.12.77, 6.18.17, 6.19.7, 7.0 and their respective stable series.

Affected from

≥ 5.10

Fixed in

✓ 6.1.167 6.1.x ✓ 6.6.130 6.6.x ✓ 6.12.77 6.12.x ✓ 6.18.17 6.18.x ✓ 6.19.7 6.19.x ✓ 7.0

References

The following references provide additional information about CVE-2026-23315 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/0fb3b94a9431a3800717e5c3b6fa2e1045a15029
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4e10a730d1b511ff49723371ed6d694dd1b2c785
Patch
Kernel patch commit
https://git.kernel.org/stable/c/7ae7b093b7dba9548a3bc4766b9364b97db4732d
Patch

6 patch commits total View all on NVD

Details

CVE ID CVE-2026-23315

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2026-03-25

Modified 2026-04-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-23315?

CVE-2026-23315 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 , classified as an Out-of-bounds Read flaw (CWE-125) . It affects Linux kernel versions from 5.10 onward and has been patched in 6.1.167, 6.6.130, 6.12.77 and others. CVE-2026-23315 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-23315?

CVE-2026-23315 has a CVSS score of 7.1 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:N/A:H.
Is there a patch available for CVE-2026-23315?

Yes — CVE-2026-23315 has been patched. Fixed versions include 6.1.167, 6.6.130, 6.12.77 and others. If you are running Linux kernel 5.10 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-23315 actively exploited?

No — CVE-2026-23315 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 →