CVE-2019-16155

mediumpriority · track · 28EPSS 0.004 · 38 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.44% (38th) EPSS

CVSS 6.6 · medium

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

A privilege escalation vulnerability in FortiClient for Linux 6.2.1 and below may allow a user with low privilege to overwrite system files as root with arbitrary content through system backup file via specially crafted "BackupConfig" type IPC client requests to the fctsched process. Further more, FortiClient for Linux 6.2.2 and below allow low privilege user write the system backup file under root privilege through GUI thus can cause root system file overwrite.

cvss

Technical severity, 0–10. One row per scoring source.

7.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.5–7.1

v2.06.6mediumAV:L/AC:L/Au:N/C:N/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 9.2

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.2

v3.17.1highAV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.16.5mediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-264USCWE-269US

affected products (3)

Products and version ranges known to be affected.

Fortinet Fortinet FortiClientLinux≤ FortiClientLinux 6.2.1 and belowenisa_euvdEU
Fortinet Inc. FortiClient for Linux≤ 6.2.3fstec_bduRU
fortinet forticlient≤ 6.2.1nvdUScpe:2.3:a:fortinet:forticlient:*:*:*:*:*:*:*:*

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2020-02-07modified 2026-06-17

references (10)

External citations — patches, advisories, analysis.

scry

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