What is CVE-2023-53033?

CVE-2023-53033 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, affecting Linux kernel versions from 5.5 onward and patched in 5.10.164, 5.15.89, 6.1.7 and others. CVE-2023-53033 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2023-53033?

CVE-2023-53033 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-2023-53033?

Yes, CVE-2023-53033 has been patched. Fixed versions include 5.10.164, 5.15.89, 6.1.7 and others. If you are running Linux kernel 5.5 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2023-53033 actively exploited?

CVE-2023-53033 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2023-53033

Medium

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits If the offset + length goes over the ethernet + vlan header, then the length is adjusted to copy the bytes that are within the boundaries of the vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet + vlan header are copied directly from the skbuff data area. Fix incorrect arithmetic operator: subtract, not add, the size of the vlan header in case of double-tagged packets to adjust the length accordingly to address CVE-2023-0179.

Package Linux Kernel

Published 2025-03-27

Last modified 2025-10-31

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 5.5 and later are affected. Fixed in 5.10.164, 5.15.89, 6.1.7, 6.2 and their respective stable series.

Affected from

≥ 5.5

Fixed in

✓ 5.10.164 5.10.x ✓ 5.15.89 5.15.x ✓ 6.1.7 6.1.x ✓ 6.2

References

The following references provide additional information about CVE-2023-53033 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/550efeff989b041f3746118c0ddd863c39ddc1aa
Patch
Kernel patch commit
https://git.kernel.org/stable/c/696e1a48b1a1b01edad542a1ef293665864a4dd0
Patch
Kernel patch commit
https://git.kernel.org/stable/c/76ef74d4a379faa451003621a84e3498044e7aa3
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2023-53033

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2025-03-27

Modified 2025-10-31

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2023-53033?

CVE-2023-53033 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.5 onward and has been patched in 5.10.164, 5.15.89, 6.1.7 and others. CVE-2023-53033 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2023-53033?

CVE-2023-53033 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-2023-53033?

Yes — CVE-2023-53033 has been patched. Fixed versions include 5.10.164, 5.15.89, 6.1.7 and others. If you are running Linux kernel 5.5 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2023-53033 actively exploited?

No — CVE-2023-53033 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.