CVE-2021-47160

highpriority · track · 28EPSS 0.003 · 26 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.33% (26th) EPSS

CVSS 7.1 · high

Is it mine?

41 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

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.

cvss

Technical severity, 0–10. One row per scoring source.

8.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6–8.1

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.2

v3.16mediumAV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:Hsecondary · FSTEC (BDU) RU

v3.18.1highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondary · ENISA EU

v3.18.1highCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Nsecondaryexploitability 2.8 · impact 5.2

v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-402US

affected products (41)

Products and version ranges known to be affected.

Amazon Linux 2all versionscert_bundDEcpe:/o:amazon:linux_2:-
Dell NetWorkerall versionscert_bundDEcpe:/a:dell:networker:-
Dell NetWorker <19.11all versionscert_bundDE
Dell PowerProtect Data Domain <7.10.1.70all versionscert_bundDE
Dell PowerProtect Data Domain <7.13.1.40all versionscert_bundDE
Dell PowerProtect Data Domain <8.3.1.10all versionscert_bundDE
Dell PowerProtect Data Domain <8.4.0.0all versionscert_bundDE
EMC Avamarall versionscert_bundDEcpe:/a:emc:avamar:-
IBM Spectrum Protect Plus <10.1.16.3all versionscert_bundDE
Open Source Linux Kernelall versionscert_bundDEcpe:/o:linux:linux_kernel:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
Ubuntu Linuxall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:-
Dell Networker< 19.11cert_bundDE
Dell PowerProtect Data Domain< 7.10.1.70cert_bundDE
Dell PowerProtect Data Domain< 7.13.1.40cert_bundDE
Dell PowerProtect Data Domain< 8.3.1.10cert_bundDE
Dell PowerProtect Data Domain< 8.4.0.0cert_bundDE
IBM Spectrum Protect Plus< 10.1.16.3cert_bundDE

showing 20 of 41

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-0699Linux-Kernel: Mehrere Schwachstellen ermöglichen Denial of Service und unspezifische AngriffeDeutsch2024-03-24csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen im Linux-Kernel ausnutzen, um einen Denial-of-Service-Zustand zu erzeugen und einen nicht spezifizierten Angriff durchzuführen.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund NVD CVE.org MITRE

published 2024-03-25modified 2026-08-04

references (18)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan