What is CVE-2021-47160?

CVE-2021-47160 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10. CVE-2021-47160 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2021-47160?

CVE-2021-47160 has a CVSS score of 7.1 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:N/A:H.

Is there a patch available for CVE-2021-47160?

No patch is currently available for CVE-2021-47160. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2021-47160 actively exploited?

CVE-2021-47160 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2021-47160

High

In the Linux kernel, the following vulnerability has been resolved: net: dsa: mt7530: fix VLAN traffic leaks PCR_MATRIX field was set to all 1's when VLAN filtering is enabled, but was not reset when it is disabled, which may cause traffic leaks: ip link add br0 type bridge vlan_filtering 1 ip link add br1 type bridge vlan_filtering 1 ip link set swp0 master br0 ip link set swp1 master br1 ip link set br0 type bridge vlan_filtering 0 ip link set br1 type bridge vlan_filtering 0 # traffic in br0 and br1 will start leaking to each other As port_bridge_{add,del} have set up PCR_MATRIX properly, remove the PCR_MATRIX write from mt7530_port_set_vlan_aware.

Package Linux Kernel

Published 2024-03-25

Last modified 2025-03-13

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.1

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

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

References

The following references provide additional information about CVE-2021-47160 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/474a2ddaa192777522a7499784f1d60691cd831a
Patch
Kernel patch commit
https://git.kernel.org/stable/c/4fe4e1f48ba119bdbc7c897c83b04ba0d08f5488
Patch
Kernel patch commit
https://git.kernel.org/stable/c/82ae35b6c14feae5f216913d5b433e143c756d4e
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2021-47160

Severity High

CVSS score 7.1 / 10

CVSS version 3.1

Published 2024-03-25

Modified 2025-03-13

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2021-47160?

CVE-2021-47160 is a High severity Linux kernel vulnerability with a CVSS score of 7.1 out of 10 . CVE-2021-47160 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2021-47160?

CVE-2021-47160 has a CVSS score of 7.1 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:N/A:H.
Is there a patch available for CVE-2021-47160?

No patch is currently available for CVE-2021-47160. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2021-47160 actively exploited?

No — CVE-2021-47160 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.