6.5

CVE-2023-42787: fortinet fortianalyzer

CVSS: 6.5v3.1MediumModified
Published 10-10-2023Last modified 12-08-2026
Open JSON

Vulnerability summary

CVE-2023-42787 is a medium (CVSS 6.5) vulnerability in fortinet fortianalyzer. EPSS estimates a 1.74% chance of exploitation in the next 30 days, higher than 77.4% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
1.74%
0%100%
Low · +0.37 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Timeline

  1. 10-10-2023
    PublishedVulnerability first disclosed.
  2. 12-08-2026
    Last modifiedVulnerability information updated.

Description

A client-side enforcement of server-side security [CWE-602] vulnerability in Fortinet FortiManager version 7.4.0 and before 7.2.3 and FortiAnalyzer version 7.4.0 and before 7.2.3 may allow a remote attacker with low privileges to access a privileged web console via client side code execution.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

1.74%

Chance of exploitation in the next 30 days

Percentile

77%

Versus all other CVEs

30-day change

+0.37 pp

From 1.37% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.74%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Security Research

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Fortinet4 products
  • fortianalyzer≥ 6.4.0, ≤ 6.4.15 | ≥ 6.2.0, ≤ 6.2.13 | ≥ 6.2.0, ≤ 6.2.12 | ≥ 6.4.0, ≤ 6.4.13 | ≥ 7.0.0, ≤ 7.0.9 | ≥ 7.2.0, ≤ 7.2.3 | 7.4.0
  • fortianalyzer_cloud≥ 7.0.1, ≤ 7.0.9
  • fortianalyzer-bigdata≥ 7.2.0, ≤ 7.2.5 | ≥ 7.0.1, ≤ 7.0.6 | ≥ 6.4.5, ≤ 6.4.7 | 6.2.5
  • fortimanager≥ 6.4.0, ≤ 6.4.15 | ≥ 6.2.0, ≤ 6.2.13 | ≥ 6.2.0, ≤ 6.2.12 | ≥ 6.4.0, ≤ 6.4.13 | ≥ 7.0.0, ≤ 7.0.9 | ≥ 7.2.0, ≤ 7.2.3 | 7.4.0

1 vendor · 4 products

References

2 links