A researcher has disclosed several vulnerabilities against FortiClient for Windows version 6.0.5 and below, version 5.6.6, the combination of these vulnerabilities can turn into an exploit chain, which allows a user to gain system privileges on Microsoft Windows
Published May 30, 2019
7.8
HIGHCVSS 3.1
EPSS 0.38%
Description
A researcher has disclosed several vulnerabilities against FortiClient for Windows version 6.0.5 and below, version 5.6.6, the combination of these vulnerabilities can turn into an exploit chain, which allows a user to gain system privileges on Microsoft Windows.
Affected products
-
- Version 5.6.6StatusaffectedConstraints-
- Version 6.0.0StatusaffectedConstraints<=6.0.5
- 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 | FortiClientWindows | unaffected |
|
- ≤ 6.0.4
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
Vendor solution
It is advised that all customers update their Vulnerability Scan engine to v2.00027 or later to protect against this vulnerability. In FortiClient -> About -> Engines -> Vulnerability, ensure version is 2.00027 or greater. The engine update will be pushed automatically to all FortiClients. Upgrade to FortiClient 6.0.5.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:X/RC:X
1 other source (NVD) ▾
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
AV:L/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
CISA SSVC (Vulnrichment)
Stakeholder-Specific Vulnerability Categorization from CISA ADP.
Exploitation
NoneAutomatable
NoTechnical Impact
TotalDecision
n/aAssessed Oct 24, 2024 · SSVC 2.0.3
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 0.38% (0.00382) | 29.77th | v5 (v2026.06.15) |
| Sep 20, 2026 | 0.38% (0.00382) | 32.09th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.04% (0.00045) | 16.14th | v3 (v2023.03.01) |
| May 1, 2024 | 0.04% (0.00045) | 14.40th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.04% (0.00045) | 12.36th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.22% (0.00221) | 1.67th | v5 (v2026.06.15) |
| Apr 14, 2021 | 0.22% (0.00221) | 0.00th | v1 |
No CWE recorded.
References (1)
- https://fortiguard.com/advisory/FG-IR-18-108 Vendor Advisory
| Link | Providers | Tags |
|---|---|---|
| https://fortiguard.com/advisory/FG-IR-18-108 | Vendor Advisory |
Change history (0)
No recorded changes yet.