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CVE-2016-8493

28
FAUCET Score

CVE-2016-8493 describes a privilege escalation vulnerability in FortiClient for Windows versions 5.4.1 and 5.4.2, specifically within its FortiClientNamedPipe component. This high-severity vulnerability (CVSS 8.8) allows a low-privileged attacker to achieve full compromise of confidentiality, integrity, and availability with low attack complexity, requiring only local access. Despite its severity, there is no public exploit code available (Metasploit, Nuclei, ExploitDB), and it is not listed in CISA's KEV catalog. Furthermore, the vulnerability has received minimal community discussion and media coverage, suggesting a lack of active exploitation or widespread awareness.

Impacted Technologies

VendorProductVersion(s)CPE
5.4.1CPE matchmatch criteria
cpe:2.3:a:fortinet:forticlient:5.4.1:*:*:*:*:windows:*:*
5.4.2CPE matchmatch criteria
cpe:2.3:a:fortinet:forticlient:5.4.2:*:*:*:*:windows:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.82%
Probability of exploitation in next 30 days
EPSS Percentile
76.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0182 is in the 75th percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 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 / psirt/FG-IR-16-095
Vendor Advisory
securityfocus.com / bid/101682
Third Party AdvisoryVDB Entry