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CVE-2016-8491

28
FAUCET Score

CVE-2016-8491 describes a critical vulnerability in Fortinet FortiWLC devices, stemming from a hardcoded 'core' account that grants remote attackers unauthorized read/write access via a shell. With a CVSS score of 9.1 (CRITICAL), this vulnerability is easily exploitable over the network with low attack complexity and no user interaction, leading to high confidentiality and integrity impacts. While there is no evidence of active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered significant community discussion with 10 mentions, indicating awareness among security researchers.

Impacted Technologies

VendorProductVersion(s)CPE
7.0-9-1CPE matchmatch criteria
cpe:2.3:h:fortinet:fortiwlc:7.0-9-1:*:*:*:*:*:*:*
7.0-10-0CPE matchmatch criteria
cpe:2.3:h:fortinet:fortiwlc:7.0-10-0:*:*:*:*:*:*:*
8.1-2-0CPE matchmatch criteria
cpe:2.3:h:fortinet:fortiwlc:8.1-2-0:*:*:*:*:*:*:*
8.1-3-2CPE matchmatch criteria
cpe:2.3:h:fortinet:fortiwlc:8.1-3-2:*:*:*:*:*:*:*
8.2-4-0CPE matchmatch criteria
cpe:2.3:h:fortinet:fortiwlc:8.2-4-0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

9.1CRITICAL

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
5.2
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.52%
Probability of exploitation in next 30 days
EPSS Percentile
71.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0152 is in the 59th percentile among its peer group of 36,835 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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-16-065
Vendor Advisory
securityfocus.com / bid/94186
Third Party AdvisoryVDB Entry