What is CVE-2022-48748?

CVE-2022-48748 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10, classified as a Uncontrolled Resource Consumption flaw (CWE-400), affecting Linux kernel versions from 5.6 onward and patched in 5.10.96, 5.15.19, 5.16.5 and others. CVE-2022-48748 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2022-48748?

CVE-2022-48748 has a CVSS score of 7.5 out of 10, rated High severity. The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2022-48748?

Yes, CVE-2022-48748 has been patched. Fixed versions include 5.10.96, 5.15.19, 5.16.5 and others. If you are running Linux kernel 5.6 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2022-48748 actively exploited?

CVE-2022-48748 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Uncontrolled Resource Consumption (CWE-400)?

The product does not properly control the amount of resources it consumes, leading to exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/400.html

CVE-2022-48748

High

In the Linux kernel, the following vulnerability has been resolved: net: bridge: vlan: fix memory leak in __allowed_ingress When using per-vlan state, if vlan snooping and stats are disabled, untagged or priority-tagged ingress frame will go to check pvid state. If the port state is forwarding and the pvid state is not learning/forwarding, untagged or priority-tagged frame will be dropped but skb memory is not freed. Should free skb when __allowed_ingress returns false.

Package Linux Kernel

Published 2024-06-20

Last modified 2025-03-24

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

7.5

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-400

CVE-2022-48748 is a Uncontrolled Resource Consumption vulnerability

What is Uncontrolled Resource Consumption?

The product does not properly control the amount of resources it consumes, leading to exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 5.6 and later are affected. Fixed in 5.10.96, 5.15.19, 5.16.5, 5.17 and their respective stable series.

Affected from

≥ 5.6

Fixed in

✓ 5.10.96 5.10.x ✓ 5.15.19 5.15.x ✓ 5.16.5 5.16.x ✓ 5.17

References

4 total

Kernel Git
https://git.kernel.org/stable/c/14be8d448fca6fe7b2a413831eedd55aef6c6511

Patch
Kernel Git
https://git.kernel.org/stable/c/446ff1fc37c74093e81db40811a07b5a19f1d797

Patch
Kernel Git
https://git.kernel.org/stable/c/c5e216e880fa6f2cd9d4a6541269377657163098

Patch
Kernel Git
https://git.kernel.org/stable/c/fd20d9738395cf8e27d0a17eba34169699fccdff

Patch

Details

CVE ID CVE-2022-48748

Severity High

CVSS score 7.5 / 10

CVSS version 3.1

Published 2024-06-20

Modified 2025-03-24

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2022-48748?

CVE-2022-48748 is a High severity Linux kernel vulnerability with a CVSS score of 7.5 out of 10 , classified as an Uncontrolled Resource Consumption flaw (CWE-400) . It affects Linux kernel versions from 5.6 onward and has been patched in 5.10.96, 5.15.19, 5.16.5 and others. CVE-2022-48748 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2022-48748?

CVE-2022-48748 has a CVSS score of 7.5 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2022-48748?

Yes. CVE-2022-48748 has been patched. Fixed versions include 5.10.96, 5.15.19, 5.16.5 and others. If you are running Linux kernel 5.6 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2022-48748 actively exploited?

No. CVE-2022-48748 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.