CVE-2019-5585: An improper access control vulnerability in FortiClientMac before 6.0.5 may allow an attacker to affect the ap

Routine

MEDIUM 6.1DOWNGRADE

CVE-2019-5585 is a medium-severity flaw (CVSS 6.1) affecting forticlient. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An improper access control vulnerability in FortiClientMac before 6.0.5 may allow an attacker to affect the application's performance via modifying the contents of a file used by several FortiClientMac processes.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.1 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.4% (top 71%)
CISA exploited list	No
Published	2019-04-09
Last modified	2026-06-17

Publisher (CNA): Fortinet, Inc. · Vendor: forticlient

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2019-04-09 21:29 UTCPublished CVE record published
2026-06-17 02:37 UTCUpdated Record last modified

forticlient forticlient DOWNGRADE

Affected: 6.0.1 · 6.0.2 · 6.0.3 · 6.0.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0.1

1. Check installed version

apt-cache policy forticlient || rpm -q forticlient || forticlient --version

2. No fixed release: DOWNGRADE to a release before 6.0.1 (Debian / Ubuntu)

apt-cache madison forticlient sudo apt install forticlient=<VERSION_BEFORE_6.0.1> sudo apt-mark hold forticlient

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list forticlient sudo dnf downgrade forticlient-<VERSION_BEFORE_6.0.1> sudo dnf versionlock add forticlient

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2019-5585?

forticlient: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2019-5585 being exploited?

CVE-2019-5585 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2019-5585 affect?

CVE-2019-5585 affects forticlient. Severity is medium (CVSS 6.1). An improper access control vulnerability in FortiClientMac before 6.0.5 may allow an attacker to affect the application's performance via modifying the contents of a file used by several FortiClientMac processes.

How urgent is CVE-2019-5585?

Priority 29/100. No elevated risk signals yet.

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References

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