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01 Record

CVE-2017-17543

Users' VPN authentication credentials are unsafely encrypted in Fortinet FortiClient for Windows 5.6.0 and below versions, FortiClient for Mac OSX 5.6.0 and below versions and FortiClient SSLVPN

UnratedPUBLISHEDCNA: fortinet
CNA base scoreUnratedNo CNA CVSS vector

02 Description

Users' VPN authentication credentials are unsafely encrypted in Fortinet FortiClient for Windows 5.6.0 and below versions, FortiClient for Mac OSX 5.6.0 and below versions and FortiClient SSLVPN

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.43% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 37.8% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2018-04-26 20:00Z8 YR AGO
Last updated
2024-10-25 14:32Z2 YR AGO
Reserved
2017-12-11
Assigning CNA
fortinet
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
  • CWE-326Inadequate Encryption StrengthClass
Data version
5.1
Document digest
6368d9d3327612271e734df78879a9b16218503c8afdaa6e9351679157e91c78

05 Affected products

VendorProductVersionsPlatforms
Fortinet, Inc.FortiClient for Windows5.6.0 and below versions—
Fortinet, Inc.FortiClient for Mac OSX5.6.0 and below versions—
Fortinet, Inc.FortiClient SSLVPN Client for Linux4.4.2335 and below versions—

06 References