4.5

CVE-2020-15936: fortinet fortinet fortios Improper Input Validation

CVSS: 4.5v3.1MediumModified
Published 01-03-2022Last modified 22-10-2024
Open JSON

Vulnerability summary

CVE-2020-15936 is a medium (CVSS 4.5) Improper Input Validation vulnerability in fortinet fortinet fortios. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 50.3% of scored vulnerabilities.

Overall risk
18/100
0100
Low · default modelHow is this calculated?
CVSS score
4.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.65%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 01-03-2022
    PublishedVulnerability first disclosed.
  2. 22-10-2024
    Last modifiedVulnerability information updated.

Description

A improper input validation in Fortinet FortiGate version 6.4.3 and below, version 6.2.5 and below, version 6.0.11 and below, version 5.6.13 and below allows attacker to disclose sensitive information via SNI Client Hello TLS packets.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.65%

Chance of exploitation in the next 30 days

Percentile

50%

Versus all other CVEs

30-day change

0.00 pp

From 0.65% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.65%

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 6.4.3, 6.4.2, 6.4.1, 6.4.0, 6.2.5, 6.2.4, 6.2.3, 6.2.2, 6.2.1, 6.2.0, 6.0.11, 6.0.10, 6.0.9, 6.0.8, 6.0.7, 6.0.6, 6.0.5, 6.0.4, 6.0.3, 6.0.2, 6.0.1, 6.0.0, 5.6.13, 5.6.12, 5.6.11, 5.6.10, 5.6.9, 5.6.8, 5.6.7, 5.6.6, 5.6.5, 5.6.4, 5.6.3, 5.6.2, 5.6.1, 5.6.0
  • fortios≥ 5.6.0, ≤ 5.6.13 | ≥ 6.0.0, ≤ 6.0.11 | ≥ 6.2.0, ≤ 6.2.5 | ≥ 6.4.0, ≤ 6.4.3

1 vendor · 2 products

References

1 links