A privilege escalation in Fortinet FortiClient Windows 5.4.3 and earlier as well as 5.6.0 allows attacker to gain privilege via exploiting the Windows "security alert" dialog thereby popping up when the "VPN before logon" feature is enabled and an untrusted certificate chain
Published Dec 14, 2017
8.1
HIGHCVSS 3.0
EPSS 1.85%
Description
A privilege escalation in Fortinet FortiClient Windows 5.4.3 and earlier as well as 5.6.0 allows attacker to gain privilege via exploiting the Windows "security alert" dialog thereby popping up when the "VPN before logon" feature is enabled and an untrusted certificate chain.
Affected products
-
- Version 5.6.0, 5.4.3, 5.4.2, 5.4.1, 5.4.0StatusaffectedConstraints-
- 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, Inc. | FortiClientWindows | n/a |
|
- ≤ 5.4.3
- 5.6.0
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.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
AV:N/AC:H/Au:N/C:C/I:C/A:C
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 v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.85% (0.01850) | 78.34th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.85% (0.01850) | 76.27th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.88% (0.00882) | 82.70th | v3 (v2023.03.01) |
| Jun 21, 2024 | 0.88% (0.00882) | 82.61th | v3 (v2023.03.01) |
| Sep 29, 2023 | 0.88% (0.00882) | 80.61th | v3 (v2023.03.01) |
| May 7, 2023 | 1.05% (0.01049) | 81.84th | v3 (v2023.03.01) |
| Mar 7, 2023 | 1.24% (0.01237) | 83.30th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.95% (0.00954) | 36.37th | v2 (v2022.01.01) |
| Sep 2, 2022 | 0.95% (0.00954) | 34.50th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.95% (0.00954) | 32.50th | v2 (v2022.01.01) |
| Feb 4, 2022 | 0.95% (0.00954) | 16.28th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.83% (0.00833) | 24.58th | v1 |
| Jan 6, 2022 | 0.83% (0.00833) | 23.96th | v1 |
| Sep 1, 2021 | 0.83% (0.00833) | 57.50th | v1 |
| Apr 14, 2021 | 0.83% (0.00833) | 0.00th | v1 |
No CWE recorded.
References (3)
- http://www.securityfocus.com/bid/102176 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- https://fortiguard.com/advisory/FG-IR-17-070 x_refsource_CONFIRMVendor Advisory
- https://securite.intrinsec.com/2017/12/22/cve-2017-7344-fortinet-forticlient-windows-privilege-escalation-at-logon/ x_refsource_MISCExploitMitigationThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.securityfocus.com/bid/102176 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| https://fortiguard.com/advisory/FG-IR-17-070 | x_refsource_CONFIRMVendor Advisory | |
| https://securite.intrinsec.com/2017/12/22/cve-2017-7344-fortinet-forticlient-windows-privilege-escalation-at-logon/ | x_refsource_MISCExploitMitigationThird Party Advisory |
Change history (0)
No recorded changes yet.