What is CVE-2023-53073?

CVE-2023-53073 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.19 onward and patched in 6.1.22, 6.2.9 and 6.3. CVE-2023-53073 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-53073?

CVE-2023-53073 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-2023-53073?

Yes, CVE-2023-53073 has been patched. Fixed versions include 6.1.22, 6.2.9 and 6.3. If you are running Linux kernel 5.19 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-53073 actively exploited?

CVE-2023-53073 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-53073

Medium

In the Linux kernel, the following vulnerability has been resolved: perf/x86/amd/core: Always clear status for idx The variable 'status' (which contains the unhandled overflow bits) is not being properly masked in some cases, displaying the following warning: WARNING: CPU: 156 PID: 475601 at arch/x86/events/amd/core.c:972 amd_pmu_v2_handle_irq+0x216/0x270 This seems to be happening because the loop is being continued before the status bit being unset, in case x86_perf_event_set_period() returns 0. This is also causing an inconsistency because the "handled" counter is incremented, but the status bit is not cleaned. Move the bit cleaning together above, together when the "handled" counter is incremented.

Package Linux Kernel

Published 2025-05-02

Last modified 2025-11-12

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 5.19 and later are affected. Fixed in 6.1.22, 6.2.9, 6.3 and their respective stable series.

Affected from

≥ 5.19

Fixed in

✓ 6.1.22 6.1.x ✓ 6.2.9 6.2.x ✓ 6.3

References

The following references provide additional information about CVE-2023-53073 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/263f5ecaf7080513efc248ec739b6d9e00f4129f
Patch
Kernel patch commit
https://git.kernel.org/stable/c/9d4c7b1f12e101d6d6253092588b127416ddfb6c
Patch
Kernel patch commit
https://git.kernel.org/stable/c/ab33a8f7649b0324639a336e1081aaea51a4523e
Patch

Details

CVE ID CVE-2023-53073

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-05-02

Modified 2025-11-12

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-53073?

CVE-2023-53073 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.19 onward and has been patched in 6.1.22, 6.2.9 and 6.3. CVE-2023-53073 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-53073?

CVE-2023-53073 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-2023-53073?

Yes — CVE-2023-53073 has been patched. Fixed versions include 6.1.22, 6.2.9 and 6.3. If you are running Linux kernel 5.19 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-53073 actively exploited?

No — CVE-2023-53073 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.