What is CVE-2026-46157?

CVE-2026-46157 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10, affecting Linux kernel versions from 2.6.12 onward and patched in 6.12.88, 6.18.30, 7.0.7 and others. CVE-2026-46157 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-46157?

CVE-2026-46157 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-2026-46157?

Yes, CVE-2026-46157 has been patched. Fixed versions include 6.12.88, 6.18.30, 7.0.7 and others. If you are running Linux kernel 2.6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-46157 actively exploited?

CVE-2026-46157 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-46157

High

In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: oss: Fix data race at accessing runtime.oss.trigger Currently the runtime.oss.trigger field may be accessed concurrently without protection, which may lead to the data race. And, in this case, it may lead to more severe problem because it's a bit field; as writing the data, it may overwrite other bit fields as well, which confuses the operation completely, as spotted by fuzzing. Fix it by covering runtime.oss.trigger bit fled also with the existing params_lock mutex in both snd_pcm_oss_get_trigger() and snd_pcm_oss_poll().

Package Linux Kernel

Published 2026-05-28

Last modified 2026-05-30

CVSS version 3.1

Patch available

Yes

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

Affected versions

Linux kernel versions 2.6.12 and later are affected. Fixed in 6.12.88, 6.18.30, 7.0.7, 7.1-rc2 and their respective stable series.

Affected from

≥ 2.6.12

Fixed in

✓ 6.12.88 6.12.x ✓ 6.18.30 6.18.x ✓ 7.0.7 7.0.x ✓ 7.1-rc2

References

The following references provide additional information about CVE-2026-46157 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/49f9d048845be874df7997e4b1ce662de450c4b6
Patch
Kernel patch commit
https://git.kernel.org/stable/c/6b01c1bc9a4748ab37548a700a8aaff910e298e6
Patch
Kernel patch commit
https://git.kernel.org/stable/c/901ac0ff15edf9503162e2cf6579bd11a30f1ed4
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2026-46157

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2026-05-28

Modified 2026-05-30

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-46157?

CVE-2026-46157 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . It affects Linux kernel versions from 2.6.12 onward and has been patched in 6.12.88, 6.18.30, 7.0.7 and others. CVE-2026-46157 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-46157?

CVE-2026-46157 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-2026-46157?

Yes — CVE-2026-46157 has been patched. Fixed versions include 6.12.88, 6.18.30, 7.0.7 and others. If you are running Linux kernel 2.6.12 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-46157 actively exploited?

No — CVE-2026-46157 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.