5.9

CVE-2018-9194: fortinet, inc. fortios Observable Discrepancy

CVSS: 5.9v3.0MediumModified
Published 05-09-2018Last modified 25-10-2024
Open JSON

Vulnerability summary

CVE-2018-9194 is a medium (CVSS 5.9) Observable Discrepancy vulnerability in fortinet, inc. fortios. EPSS estimates a 1.13% chance of exploitation in the next 30 days, higher than 65.9% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
5.9/10
010
Medium · v3.0 (NVD)
EPSS score
1.13%
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. 05-09-2018
    PublishedVulnerability first disclosed.
  2. 25-10-2024
    Last modifiedVulnerability information updated.

Description

A plaintext recovery of encrypted messages or a Man-in-the-middle (MiTM) attack on RSA PKCS #1 v1.5 encryption may be possible without knowledge of the server's private key. Fortinet FortiOS 5.4.6 to 5.4.9, 6.0.0 and 6.0.1 are vulnerable by such attack under VIP SSL feature when CPx being used.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

1.13%

Chance of exploitation in the next 30 days

Percentile

66%

Versus all other CVEs

30-day change

0.00 pp

From 1.13% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.13%

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

Fortinet1 product
  • fortiosEOL≥ 5.4.6, ≤ 5.4.9 | 6.0.0 | 6.0.1
Fortinet, inc.1 product
  • fortios6.0.1, 6.0.0 | 5.4.9, 5.4.8, 5.4.7, 5.4.6

2 vendors · 2 products

References

3 links