A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server
Published Aug 14, 2020 ·Due May 3, 2022
6.5
MEDIUMCVSS 3.1
EPSS 18.42%
Description
A Default Configuration vulnerability in FortiOS may allow an unauthenticated attacker on the same subnet to intercept sensitive information by impersonating the LDAP server.
Affected products
-
- Version FortiOS 6.2.0 and below.StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Fortinet | Fortinet FortiOS | n/a |
|
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
No CVSS v3.0 score for this CVE.
AV:A/AC:L/Au:N/C:P/I:N/A:N
Date Added
Nov 3, 2021
Patch Due
May 3, 2022
Required Action
Apply updates per vendor instructions.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
ActiveAutomatable
NoTechnical Impact
PartialDecision
n/aAssessed Oct 23, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (29 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 18.42% (0.18422) | 97.16th | v5 (v2026.06.15) |
| Jun 15, 2026 | 18.57% (0.18566) | 96.88th | v5 (v2026.06.15) |
| May 23, 2026 | 50.55% (0.50553) | 97.89th | v4 (v2025.03.14) |
| Feb 27, 2026 | 48.36% (0.48360) | 97.67th | v4 (v2025.03.14) |
| Feb 22, 2026 | 51.61% (0.51605) | 97.82th | v4 (v2025.03.14) |
| Feb 18, 2026 | 41.80% (0.41798) | 97.33th | v4 (v2025.03.14) |
| Feb 17, 2026 | 51.68% (0.51675) | 97.82th | v4 (v2025.03.14) |
| Feb 15, 2026 | 55.16% (0.55162) | 97.99th | v4 (v2025.03.14) |
| Jan 18, 2026 | 56.82% (0.56819) | 98.05th | v4 (v2025.03.14) |
| Dec 23, 2025 | 49.18% (0.49178) | 97.66th | v4 (v2025.03.14) |
| Nov 21, 2025 | 3.62% (0.03618) | 87.32th | v4 (v2025.03.14) |
| Nov 18, 2025 | 0.99% (0.00986) | 74.86th | v4 (v2025.03.14) |
| Oct 22, 2025 | 3.62% (0.03618) | 87.24th | v4 (v2025.03.14) |
| Aug 21, 2025 | 2.27% (0.02266) | 83.97th | v4 (v2025.03.14) |
| Jul 16, 2025 | 3.27% (0.03266) | 86.63th | v4 (v2025.03.14) |
| Apr 5, 2025 | 1.69% (0.01691) | 80.65th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.95% (0.02953) | 85.55th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.23% (0.00234) | 61.86th | v3 (v2023.03.01) |
| Apr 30, 2023 | 0.23% (0.00234) | 59.97th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.20% (0.00202) | 56.37th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 13, 2022 | 0.89% (0.00885) | 26.25th | v2 (v2022.01.01) |
| Apr 2, 2022 | 0.89% (0.00885) | 24.25th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.40% (0.01404) | 69.97th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.40% (0.01404) | 49.02th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.84% (0.01840) | 47.83th | v1 |
| Jan 6, 2022 | 1.84% (0.01840) | 47.32th | v1 |
| Sep 1, 2021 | 0.42% (0.00416) | 25.53th | v1 |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
References (2)
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-5591 government-resourceUS Government Resource
- https://www.fortiguard.com/psirt/FG-IR-19-037 x_refsource_CONFIRMMitigationVendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-5591 | government-resourceUS Government Resource | |
| https://www.fortiguard.com/psirt/FG-IR-19-037 | x_refsource_CONFIRMMitigationVendor Advisory |
Change history (0)
No recorded changes yet.