CVE-2016-6154

MEDIUMNVD 6.16.1—

6.1

The authentication applet in Watchguard Fireware 11.11 Operating System has reflected XSS (this can also cause an open redirect).

CVSS v3: 6.1
EG Score: 6.1(medium)
EPSS: 43.6%
KEV: Not listed

Published

August 23, 2019

Last Modified

November 21, 2024

References (2)

cve@mitrehttps://www.sec-1.com/blog/2016/sec-1-advisory-reflected-cross-site-scripting-open-redirect-watchguard-fireware-v11-11
af854a3a-2127-422b-91ae-364da2661108https://www.sec-1.com/blog/2016/sec-1-advisory-reflected-cross-site-scripting-open-redirect-watchguard-fireware-v11-11

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 15:19 UTCEG score recompute
2026-05-27 15:19 UTCGHSA enrichment
2026-05-27 13:38 UTCepss_batch
2026-05-27 13:38 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-24 16:44 UTCepss_batch

Frequently asked(5)

What is CVE-2016-6154?

CVE-2016-6154 is a medium vulnerability published on August 23, 2019. The authentication applet in Watchguard Fireware 11.11 Operating System has reflected XSS (this can also cause an open redirect).

When was CVE-2016-6154 disclosed?

CVE-2016-6154 was first published in the National Vulnerability Database on August 23, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2016-6154 actively exploited?

CVE-2016-6154 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 43.6% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2016-6154?

CVE-2016-6154 has a CVSS v3 base score of 6.1 (NVD).

How do I remediate CVE-2016-6154?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2016-6154, 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.

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CVE-2016-6154

📅 Published

🔄 Last Modified

🔗 References (2)