How severe is CVE-2019-25421?

CVE-2019-25421 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-2019-25421 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-25421?

CVE-2019-25421 affects Comodo Dome Firewall. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-25421?

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

Does CVE-2019-25421 have an EU (EUVD) identifier?

Yes. CVE-2019-25421 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-19651.

When was CVE-2019-25421 published?

CVE-2019-25421 was published on 2026-02-19 and last updated on 2026-06-17.

CVE-2019-25421

CVE-2019-25421 is a medium-severity vulnerability in Comodo Dome Firewall 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 v4: 5.1
EPSS exploit prediction: 0% (34th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2019-19651
Weakness: CWE-79
Affected product: Comodo Dome Firewall
Published: 2026-02-19
Last modified: 2026-06-17

Description

Comodo Dome Firewall 2.7.0 contains multiple cross-site scripting vulnerabilities that allow attackers to inject malicious scripts through the policyfw endpoint. Attackers can submit POST requests with JavaScript payloads in the mac, target, and remark parameters to execute arbitrary code in administrator browsers or store persistent scripts in the application.

Frequently asked questions

What is CVE-2019-25421?: Comodo Dome Firewall 2.7.0 contains multiple cross-site scripting vulnerabilities that allow attackers to inject malicious scripts through the policyfw endpoint. Attackers can submit POST requests with JavaScript payloads in the mac, target, and remark parameters to execute arbitrary code in administrator browsers or store persistent scripts in the application.
How severe is CVE-2019-25421?: CVE-2019-25421 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-2019-25421 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (34th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-25421?: CVE-2019-25421 affects Comodo Dome Firewall. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-25421?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2019-25421 have an EU (EUVD) identifier?: Yes. CVE-2019-25421 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-19651.
When was CVE-2019-25421 published?: CVE-2019-25421 was published on 2026-02-19 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:comodo:dome_firewall:*:*:*:*:*:*:*:*

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