How severe is CVE-2021-43729?

CVE-2021-43729 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-43729 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-43729?

CVE-2021-43729 affects Pix-link Lv-wr09 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-43729?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-43729 published?

CVE-2021-43729 was published on 2022-05-20 and last updated on 2026-06-17.

CVE-2021-43729

CVE-2021-43729 is a medium-severity vulnerability in Pix-link Lv-wr09 Firmware with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Pix-link Lv-wr09 Firmware
Published: 2022-05-20
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2021-43729?: Pix-Link MiNi Router 28K.MiniRouter.20190211 was discovered to contain a stored cross-site scripting (XSS) vulnerability due to an unsanitized Security Key parameter.
How severe is CVE-2021-43729?: CVE-2021-43729 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-43729 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-43729?: CVE-2021-43729 affects Pix-link Lv-wr09 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-43729?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-43729 published?: CVE-2021-43729 was published on 2022-05-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:pix-link:lv-wr09_firmware:28k.minirouter.20190211:*:*:*:*:*:*:*

More vulnerabilities in Pix-link Lv-wr09 Firmware

CVE-2019-11877 — Medium (CVSS 6.1): XSS on the PIX-Link Repeater/Router LV-WR09 with firmware v28K.MiniRouter.20180616 allows attackers to steal…
CVE-2021-43728 — Medium (CVSS 5.4): Pix-Link MiNi Router 28K.MiniRouter.20190211 was discovered to contain a stored cross-site scripting (XSS)…

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