What is CVE-2026-46332?

CVE-2026-46332 is a High severity Linux kernel vulnerability with a CVSS score of 8.0 out of 10, affecting Linux kernel versions from 6.12 onward and patched in 6.12.86, 6.18.27, 7.0.4 and others. CVE-2026-46332 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46332?

CVE-2026-46332 has a CVSS score of 8.0 out of 10, rated High severity. The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2026-46332?

Yes, CVE-2026-46332 has been patched. Fixed versions include 6.12.86, 6.18.27, 7.0.4 and others. If you are running Linux kernel 6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46332 actively exploited?

CVE-2026-46332 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-46332

High

In the Linux kernel, the following vulnerability has been resolved: greybus: gb-beagleplay: bound bootloader receive buffering cc1352_bootloader_rx() appends each serdev chunk into the fixed rx_buffer before parsing bootloader packets. The helper can keep leftover bytes between callbacks and may receive multiple packets in one callback, so a single count value is not constrained by one packet length. Check that the incoming chunk fits in the remaining receive buffer space before memcpy(). If it does not, drop the staged data and consume the bytes instead of overflowing rx_buffer.

Package Linux Kernel

Published 2026-06-09

Last modified 2026-07-23

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

8.0

out of 10

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-120

CVE-2026-46332 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

Affected versions

Linux kernel versions 6.12 and later are affected. Fixed in 6.12.86, 6.18.27, 7.0.4, 7.1 and their respective stable series.

Affected from

≥ 6.12

Fixed in

✓ 6.12.86 6.12.x ✓ 6.18.27 6.18.x ✓ 7.0.4 7.0.x ✓ 7.1

References

4 total

Kernel Git
https://git.kernel.org/stable/c/0339a746ff7cd3f9d10f565e89c99dc93191e58d

Patch
Kernel Git
https://git.kernel.org/stable/c/1214bf28965ceaf584fb20d357731264dd2e10e1

Patch
Kernel Git
https://git.kernel.org/stable/c/663c2728a6d0f781044431111b53a27f71027e48

Patch
Kernel Git
https://git.kernel.org/stable/c/fb91d4e49fcbea0b5091394ac5b8f7d4124265c3

Patch

Details

CVE ID CVE-2026-46332

Severity High

CVSS score 8.0 / 10

CVSS version 3.1

Published 2026-06-09

Modified 2026-07-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46332?

CVE-2026-46332 is a High severity Linux kernel vulnerability with a CVSS score of 8.0 out of 10 . It affects Linux kernel versions from 6.12 onward and has been patched in 6.12.86, 6.18.27, 7.0.4 and others. CVE-2026-46332 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46332?

CVE-2026-46332 has a CVSS score of 8.0 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2026-46332?

Yes. CVE-2026-46332 has been patched. Fixed versions include 6.12.86, 6.18.27, 7.0.4 and others. If you are running Linux kernel 6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46332 actively exploited?

No. CVE-2026-46332 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.