CVE-2018-17493: eVisitorPass could allow a local attacker to gain elevated privileges on the system, caused by an error with t

Routine

HIGH 8.4DOWNGRADE

CVE-2018-17493 is a high-severity flaw (CVSS 8.4) affecting evisitorpass. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

eVisitorPass could allow a local attacker to gain elevated privileges on the system, caused by an error with the Fullscreen button. By visiting the kiosk and clicking the full screen button in the bottom right, an attacker could exploit this vulnerability to close the program and launch other processes on the system.

Why this priority

High severity

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

Risk facts

CVSS score	8.4 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 67%)
CISA exploited list	No
Published	2019-03-21
Last modified	2026-06-17

Publisher (CNA): IBM Corporation · Vendor: thresholdsecurity

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

Am I affected?

Timeline

2019-03-21 16:00 UTCPublished CVE record published
2026-06-17 01:45 UTCUpdated Record last modified

thresholdsecurity evisitorpass DOWNGRADE

Affected: 1.5.5.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.5.5.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 1.5.5.2 (Debian / Ubuntu)

apt-cache madison evisitorpass sudo apt install evisitorpass=<VERSION_BEFORE_1.5.5.2> sudo apt-mark hold evisitorpass

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

dnf --showduplicates list evisitorpass sudo dnf downgrade evisitorpass-<VERSION_BEFORE_1.5.5.2> sudo dnf versionlock add evisitorpass

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-2018-17493?

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

Is CVE-2018-17493 being exploited?

CVE-2018-17493 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-2018-17493 affect?

CVE-2018-17493 affects evisitorpass. Severity is high (CVSS 8.4). eVisitorPass could allow a local attacker to gain elevated privileges on the system, caused by an error with the Fullscreen button. By visiting the kiosk and clicking the full screen button in the bottom right, an attacker could exploit thi

How urgent is CVE-2018-17493?

Priority 38/100. High severity

Related CVEs

CVE-2018-17497 HIGH 8.4 DOWNGRADE eVisitorPass contains default administrative credentials
CVE-2018-17496 HIGH 8.4 DOWNGRADE eVisitorPass could allow a local attacker to gain elevated privileges on the system, caused by an error while
CVE-2018-17495 HIGH 8.4 DOWNGRADE eVisitorPass could allow a local attacker to gain elevated privileges on the system, caused by an error with t
CVE-2018-17494 HIGH 8.4 DOWNGRADE eVisitorPass could allow a local attacker to gain elevated privileges on the system, caused by an error with t

References

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