CVE-2021-43728: Pix-Link MiNi Router 28K.MiniRouter.20190211 was discovered to contain a stored cross-site scripting (XSS) vul

Routine

MEDIUM 5.4MITIGATE

CVE-2021-43728 is a medium-severity flaw (CVSS 5.4) affecting lv-wr09 firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Pix-Link MiNi Router 28K.MiniRouter.20190211 was discovered to contain a stored cross-site scripting (XSS) vulnerability due to an unsanitized SSID parameter.

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.6% (top 51%)
CISA exploited list	No
Weakness	CWE-79
Published	2022-05-20
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: pix-link

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2022-05-20 15:15 UTCPublished CVE record published
2026-06-17 04:11 UTCUpdated Record last modified

pix-link lv-wr09 firmware MITIGATE

Affected: 28k.minirouter.20190211

Fixed in: no fixed release known

Safe to downgrade to: a release before 28k.minirouter.20190211

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-43728?

lv-wr09 firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-43728 being exploited?

CVE-2021-43728 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-43728 affect?

CVE-2021-43728 affects lv-wr09 firmware. Severity is medium (CVSS 5.4). Pix-Link MiNi Router 28K.MiniRouter.20190211 was discovered to contain a stored cross-site scripting (XSS) vulnerability due to an unsanitized SSID parameter.

How urgent is CVE-2021-43728?

Priority 36/100. Public exploit reference

Related CVEs

CVE-2021-43729 MEDIUM 5.4 MITIGATE Pix-Link MiNi Router 28K.MiniRouter.20190211 was discovered to contain a stored cross-site scripting (XSS) vul

References

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