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CVE-2016-6154

21
FAUCET Score

CVE-2016-6154 describes a reflected Cross-Site Scripting (XSS) vulnerability, which can also lead to an open redirect, within the authentication applet of Watchguard Fireware 11.11 Operating System. This vulnerability affects Watchguard Fireware and Microsoft Windows products. With a CVSS score of 6.1 (MEDIUM), this vulnerability can be exploited remotely with low attack complexity, requiring user interaction, and could result in limited confidentiality and integrity impacts. The EPSS score is low, suggesting a minimal likelihood of exploitation. Currently, there is no evidence of active exploitation, nor are there publicly available exploit modules in Metasploit, Nuclei, or ExploitDB. The CVE has garnered no community discussion or media coverage, indicating a low level of public attention.

Impacted Technologies

VendorProductVersion(s)CPE
<= 11.11CPE matchmatch criteria
cpe:2.3:o:watchguard:fireware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.1MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.94%
Probability of exploitation in next 30 days
EPSS Percentile
57.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0094 is in the 69th percentile among its peer group of 26,221 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

sec-1.com / blog/2016/sec-1-advisory-reflected-cross-site-scripting-open-redirect-watchguard-fireware-v11-11
ExploitVendor Advisory