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CVE-2017-3133

37
FAUCET Score

CVE-2017-3133 describes a Cross-Site Scripting (XSS) vulnerability in Fortinet FortiOS versions 5.6.0 and earlier, specifically within the Replacement Message HTML for SSL-VPN. This medium-severity flaw (CVSS 6.1) allows unauthenticated attackers to execute unauthorized code or commands via user interaction, potentially leading to limited impact on confidentiality and integrity. While not listed on the KEV catalog, public exploit code is available through ExploitDB and Nuclei templates, though there is no evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
<= 5.6.0CPE matchmatch criteria
cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:*

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
10.68%
Probability of exploitation in next 30 days
EPSS Percentile
95.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
Nuclei: CVE-2017-3133 · Sep 24, 2024
ExploitDB: EDB-42388 · Jul 28, 2017
This CVE's current EPSS score of 0.1068 is in the 98th percentile among its peer group of 26,208 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Vendor Patches (1)

fortinetvendor investigatingvia nvd_reference
View patch

References

fortiguard.com / advisory/FG-IR-17-104
Vendor Advisory
exploit-db.com / exploits/42388
ExploitThird Party AdvisoryVDB Entry
securityfocus.com / bid/100009
Third Party AdvisoryVDB Entry
securitytracker.com / id/1039020
Third Party AdvisoryVDB Entry