How severe is CVE-2019-25426?

CVE-2019-25426 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-2019-25426 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-25426?

CVE-2019-25426 affects Comodo Dome Firewall. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-25426?

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

Does CVE-2019-25426 have an EU (EUVD) identifier?

Yes. CVE-2019-25426 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-19647.

When was CVE-2019-25426 published?

CVE-2019-25426 was published on 2026-02-19 and last updated on 2026-06-17.

CVE-2019-25426

CVE-2019-25426 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% (29th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2019-19647
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 a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by submitting crafted input to the dnsmasq endpoint. Attackers can send POST requests with script payloads in the TRANSPARENT_SOURCE_BYPASS or TRANSPARENT_DESTINATION_BYPASS parameters to execute arbitrary JavaScript in users' browsers.

Frequently asked questions

What is CVE-2019-25426?: Comodo Dome Firewall 2.7.0 contains a reflected cross-site scripting vulnerability that allows attackers to inject malicious scripts by submitting crafted input to the dnsmasq endpoint. Attackers can send POST requests with script payloads in the TRANSPARENT_SOURCE_BYPASS or TRANSPARENT_DESTINATION_BYPASS parameters to execute arbitrary JavaScript in users' browsers.
How severe is CVE-2019-25426?: CVE-2019-25426 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-2019-25426 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (29th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-25426?: CVE-2019-25426 affects Comodo Dome Firewall. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-25426?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2019-25426 have an EU (EUVD) identifier?: Yes. CVE-2019-25426 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2019-19647.
When was CVE-2019-25426 published?: CVE-2019-25426 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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CVE-2019-25422 — High (CVSS 7.2): Comodo Dome Firewall 2.7.0 contains cross-site scripting vulnerabilities that allow attackers to inject malicious…
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