What is CVE-2026-23373?

CVE-2026-23373 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 6.9 onward and patched in 6.12.77, 6.18.17, 6.19.7 and others. CVE-2026-23373 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2026-23373?

CVE-2026-23373 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-2026-23373?

Yes, CVE-2026-23373 has been patched. Fixed versions include 6.12.77, 6.18.17, 6.19.7 and others. If you are running Linux kernel 6.9 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2026-23373 actively exploited?

CVE-2026-23373 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2026-23373

Medium

In the Linux kernel, the following vulnerability has been resolved: wifi: rsi: Don't default to -EOPNOTSUPP in rsi_mac80211_config This triggers a WARN_ON in ieee80211_hw_conf_init and isn't the expected behavior from the driver - other drivers default to 0 too.

Package Linux Kernel

Published 2026-03-25

Last modified 2026-04-24

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 6.9 and later are affected. Fixed in 6.12.77, 6.18.17, 6.19.7, 7.0 and their respective stable series.

Affected from

≥ 6.9

Fixed in

✓ 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-2026-23373 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/67d10e8db57ffc21f8177e9e884bbc743fdc0bae
Patch
Kernel patch commit
https://git.kernel.org/stable/c/95ed07644b2c6119f706484b87b7f43e6133f3b5
Patch
Kernel patch commit
https://git.kernel.org/stable/c/b64fbd718cf42feb75502bf25d0d16eb671aea45
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2026-23373

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2026-03-25

Modified 2026-04-24

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2026-23373?

CVE-2026-23373 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 6.9 onward and has been patched in 6.12.77, 6.18.17, 6.19.7 and others. CVE-2026-23373 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2026-23373?

CVE-2026-23373 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-2026-23373?

Yes — CVE-2026-23373 has been patched. Fixed versions include 6.12.77, 6.18.17, 6.19.7 and others. If you are running Linux kernel 6.9 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2026-23373 actively exploited?

No — CVE-2026-23373 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.