What is CVE-2026-46018?

CVE-2026-46018 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 3.0.81 onward and patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-46018 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46018?

CVE-2026-46018 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2026-46018?

Yes, CVE-2026-46018 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 3.0.81 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46018 actively exploited?

CVE-2026-46018 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-46018

Medium

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES parse_uac2_sample_rate_range() caps the number of enumerated rates at MAX_NR_RATES, but it only breaks out of the current rate loop. A malformed UAC2 RANGE response with additional triplets continues parsing the remaining triplets and repeatedly prints "invalid uac2 rates" while probe still holds register_mutex. Stop the whole parse once the cap is reached and return the number of rates collected so far.

Package Linux Kernel

Published 2026-05-27

Last modified 2026-06-16

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Affected versions

Linux kernel versions 3.0.81, 3.2.47, 3.3 and later are affected. Fixed in 5.10.258, 5.15.209, 6.1.175, 6.6.140, 6.12.86, 6.18.27, 7.0.4, 7.1 and their respective stable series.

Affected from

≥ 3.0.81 ≥ 3.2.47 ≥ 3.3

Fixed in

✓ 5.10.258 5.10.x ✓ 5.15.209 5.15.x ✓ 6.1.175 6.1.x ✓ 6.6.140 6.6.x ✓ 6.12.86 6.12.x ✓ 6.18.27 6.18.x ✓ 7.0.4 7.0.x ✓ 7.1

References

8 total

Kernel Git
https://git.kernel.org/stable/c/0da05fedf5e1966b7e7d389866cb86fcf09f4b32

Patch
Kernel Git
https://git.kernel.org/stable/c/3c318f97dcc50b2e0556a1813bd6958678e881fd

Patch
Kernel Git
https://git.kernel.org/stable/c/4d7893a137eadb6163ea4298bf67d74b811d76ef

Patch
Kernel Git
https://git.kernel.org/stable/c/5436bc1b07d4656f99412dc72871d250d7d55205

Patch
Kernel Git
https://git.kernel.org/stable/c/a0b78639ef09b2e77974a3de3b1c07f6de3c5e56

Patch

Showing 5 of 8 references View all on NVD

Details

CVE ID CVE-2026-46018

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-05-27

Modified 2026-06-16

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46018?

CVE-2026-46018 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 3.0.81 onward and has been patched in 5.10.258, 5.15.209, 6.1.175 and others. CVE-2026-46018 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46018?

CVE-2026-46018 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2026-46018?

Yes. CVE-2026-46018 has been patched. Fixed versions include 5.10.258, 5.15.209, 6.1.175 and others. If you are running Linux kernel 3.0.81 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46018 actively exploited?

No. CVE-2026-46018 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.