What is CVE-2026-46203?

CVE-2026-46203 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 6.7 onward and patched in 6.12.94, 6.18.36, 7.0.9 and others. CVE-2026-46203 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46203?

CVE-2026-46203 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-2026-46203?

Yes, CVE-2026-46203 has been patched. Fixed versions include 6.12.94, 6.18.36, 7.0.9 and others. If you are running Linux kernel 6.7 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46203 actively exploited?

CVE-2026-46203 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-2026-46203

High

In the Linux kernel, the following vulnerability has been resolved: spi: cadence-quadspi: fix unclocked access on unbind Make sure that the controller is runtime resumed before disabling it during driver unbind to avoid an unclocked register access. This issue was flagged by Sashiko when reviewing a controller deregistration fix.

Package Linux Kernel

Published 2026-05-28

Last modified 2026-06-19

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-2026-46203 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 6.7 and later are affected. Fixed in 6.12.94, 6.18.36, 7.0.9, 7.1 and their respective stable series.

Affected from

≥ 6.7

Fixed in

✓ 6.12.94 6.12.x ✓ 6.18.36 6.18.x ✓ 7.0.9 7.0.x ✓ 7.1

References

4 total

Kernel Git
https://git.kernel.org/stable/c/233db2cb14db8b1935dda52a6affd97276462b82

Patch
Kernel Git
https://git.kernel.org/stable/c/d67a5311818b3e6481a1e4293c9337ebfee73111

Patch
Kernel Git
https://git.kernel.org/stable/c/2e7cd62c37f51823c2bb79de1d4d76d0c1678c7e
Kernel Git
https://git.kernel.org/stable/c/63a9f6012f453578898c9fcc13c8452a8651104e

Details

CVE ID CVE-2026-46203

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2026-05-28

Modified 2026-06-19

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46203?

CVE-2026-46203 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 6.7 onward and has been patched in 6.12.94, 6.18.36, 7.0.9 and others. CVE-2026-46203 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46203?

CVE-2026-46203 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-2026-46203?

Yes. CVE-2026-46203 has been patched. Fixed versions include 6.12.94, 6.18.36, 7.0.9 and others. If you are running Linux kernel 6.7 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46203 actively exploited?

No. CVE-2026-46203 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.