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CVE-2016-4965

28
FAUCET Score

CVE-2016-4965 describes a critical command injection vulnerability in Fortinet FortiWan (formerly AscernLink) versions prior to 4.2.5. This flaw allows remote authenticated users with nslookup access to execute arbitrary commands with root privileges by manipulating the 'graph' parameter in diagnosis_control.php. With a CVSS v3.0 score of 8.8 (High), this vulnerability presents a significant risk, enabling full compromise of confidentiality, integrity, and availability. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
<= 4.2.4CPE matchmatch criteria
cpe:2.3:a:fortinet:fortiwan:*:*:*:*:*:*:*:*

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
4.12%
Probability of exploitation in next 30 days
EPSS Percentile
89.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0411 is in the 89th percentile among its peer group of 17,823 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

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

docs.fortinet.com / uploaded/files/3236/fortiwan-v4.2.5-release-notes.pdf
Release Notes
fortiguard.com / advisory/fortiwan-multiple-vulnerabilities
Vendor Advisory
kb.cert.org / vuls/id/724487
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/92779
Third Party AdvisoryVDB Entry