7.5

CVE-2021-26108: fortinet fortinet fortios Use of Hard-coded Credentials

CVSS: 7.5v3.1HighModified
Published 08-12-2021Last modified 25-10-2024
Open JSON

Vulnerability summary

CVE-2021-26108 is a high (CVSS 7.5) Use of Hard-coded Credentials vulnerability in fortinet fortinet fortios. EPSS estimates a 1.12% chance of exploitation in the next 30 days, higher than 65.7% of scored vulnerabilities.

Overall risk
30/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
1.12%
0%100%
Low · +0.08 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 08-12-2021
    PublishedVulnerability first disclosed.
  2. 25-10-2024
    Last modifiedVulnerability information updated.

Description

A use of hard-coded cryptographic key vulnerability in the SSLVPN of FortiOS before 7.0.1 may allow an attacker to retrieve the key by reverse engineering.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.12%

Chance of exploitation in the next 30 days

Percentile

66%

Versus all other CVEs

30-day change

+0.08 pp

From 1.04% on 20-09-2026

20-09-202620-10-2026
EPSS score
1.12%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Fortinet2 products
  • fortinet fortiosFortiOS before 7.0.1
  • fortiosEOL≥ 5.6.0, ≤ 5.6.13 | ≥ 6.0.0, ≤ 6.0.12 | ≥ 6.2.0, ≤ 6.2.8 | ≥ 6.4.0, ≤ 6.4.5 | 7.0.0

1 vendor · 2 products

References

1 links