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CVE-2023-47539

29
FAUCET Score

CVE-2023-47539 is a critical improper access control vulnerability affecting FortiMail version 7.4.0 when configured with RADIUS authentication and remote_wildcard enabled. A remote, unauthenticated attacker can exploit this flaw via a crafted HTTP request to bypass administrator login. With a CVSS score of 9.8, this vulnerability presents a high risk of complete compromise (confidentiality, integrity, and availability) due to its network-based attack vector and low attack complexity. Currently, there is no evidence of active exploitation, nor are there publicly available exploit tools like Metasploit or Nuclei modules, and it has received no significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
7.4.0CPE matchmatch criteria
cpe:2.3:a:fortinet:fortimail:7.4.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.07%
Probability of exploitation in next 30 days
EPSS Percentile
61.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0107 is in the 47th percentile among its peer group of 36,897 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 / psirt/FG-IR-23-439
Vendor Advisory