CVE-2019-17652 json
A stack buffer overflow vulnerability in FortiClient for Linux 6.2.1 and below may allow a user with low privilege to cause FortiClient pro…
published 2020-02-06 6 y ago modified 2026-06-17 4 mo ago also EUVD-2019-7958
- cvss
- 6.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
A stack buffer overflow vulnerability in FortiClient for Linux 6.2.1 and below may allow a user with low privilege to cause FortiClient processes running under root priviledge crashes via sending specially crafted "StartAvCustomScan" type IPC client requests to the fctsched process due the argv data not been well sanitized.
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
1.45% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- danishcyberdefence.dk https://danishcyberdefence.dk/blog/forticlient_linux referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 6.8 | AV:N/AC:L/Au:S/C:N/I:N/A:C |
Affected products
- Fortinet Fortinet FortiClientLinux
Classification
- Weakness
-
- CWE-787 Out-of-bounds Write
- Technology feeds
References
-
danishcyberdefence.dk
/blog/forticlient_linux
exploit, third-party-advisory
-
fortiguard.com
/psirt/FG-IR-19-238
vendor-advisory
Sources
- CVE List CVE-2019-17652
- NVD CVE-2019-17652
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