Smoothwall Express 3.1-SP4-polar-x86_64-update9 contains multiple reflected cross-site scripting vulnerabilities in the dhcp.cgi script that allow attackers to inject malicious scripts through multiple parameters. Attackers can submit POST requests to dhcp.cgi with script payloads in parameters such as BOOT_SERVER, BOOT_FILE, BOOT_ROOT, START_ADDR, END_ADDR, DNS1, DNS2, NTP1, NTP2, WINS1, WINS2, DEFAULT_LEASE_TIME, MAX_LEASE_TIME, DOMAIN_NAME, NIS_DOMAIN, NIS1, NIS2, STATIC_HOST, STATIC_DESC, STATIC_MAC, and STATIC_IP to execute arbitrary JavaScript in user browsers.
CVE-2019-25380
MEDIUMNVD 6.16.1—Elevated
EchelonGraph scoreMEDIUM confidence
Score 6.1 from GitHub Security Advisory published 2026-02-16. NVD baseline CVSS 6.1; sources differ by 0.0.
Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: Elevated riskExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 6.1
- EG Score
- 6.1(medium)
- EG Risk
- 58(Attend)EG Risk 58/100SSVC: Attend
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity61% × 45%Exploitation40% × 40%Automatability100% × 15%Action: Remediate soon — notable exploitation risk. - EPSS PROB
- 0%
- EPSS %ILE
- 15%
- KEV
- Not listed
Published
February 16, 2026
Last Modified
June 17, 2026
References (3)
- disclosure@vulncheckhttp://www.smoothwall.org
- disclosure@vulncheckhttps://www.exploit-db.com/exploits/46333
- disclosure@vulncheckhttps://www.vulncheck.com/advisories/smoothwall-express-dhcpcgi-cross-site-scripting
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Frequently asked(5)
What is CVE-2019-25380?
CVE-2019-25380 is a medium vulnerability published on February 16, 2026. Smoothwall Express 3.1-SP4-polar-x8664-update9 contains multiple reflected cross-site scripting vulnerabilities in the dhcp.cgi script that allow attackers to inject malicious scripts through multiple parameters. Attackers can submit POST requests to dhcp.cgi with script payloads in parameters such…
When was CVE-2019-25380 disclosed?
CVE-2019-25380 was first published in the National Vulnerability Database on February 16, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2019-25380 actively exploited?
CVE-2019-25380 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 85.5% of all scored CVEs.
What is the CVSS score of CVE-2019-25380?
CVE-2019-25380 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2019-25380?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-25380, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2019-25380
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