How severe is CVE-2021-32019?

CVE-2021-32019 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2021-32019 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-32019?

CVE-2021-32019 affects Openwrt. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2021-32019?

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

When was CVE-2021-32019 published?

CVE-2021-32019 was published on 2021-08-02 and last updated on 2026-06-17.

CVE-2021-32019

CVE-2021-32019 is a medium-severity vulnerability in Openwrt with a CVSS 3.x base score of 6.1. 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 1% (44th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Openwrt
Published: 2021-08-02
Last modified: 2026-06-17

Description

There is missing input validation of host names displayed in OpenWrt before 19.07.8. The Connection Status page of the luci web-interface allows XSS, which can be used to gain full control over the affected system via ICMP.

Frequently asked questions

What is CVE-2021-32019?: There is missing input validation of host names displayed in OpenWrt before 19.07.8. The Connection Status page of the luci web-interface allows XSS, which can be used to gain full control over the affected system via ICMP.
How severe is CVE-2021-32019?: CVE-2021-32019 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2021-32019 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (44th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-32019?: CVE-2021-32019 affects Openwrt. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2021-32019?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-32019 published?: CVE-2021-32019 was published on 2021-08-02 and last updated on 2026-06-17.

References

https://openwrt.org/advisory/2021-08-01-1

Affected products (1)

cpe:2.3:o:openwrt:openwrt:*:*:*:*:*:*:*:*

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