CVE-2018-15483: An issue was discovered on KONE Group Controller (KGC) devices before 4.6.5

Q: How do I fix CVE-2018-15483?

group controller firmware: upgrade to 4.6.5. Exact commands for each OS are on this page.

Q: Is CVE-2018-15483 being exploited?

CVE-2018-15483 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2018-15483 affect?

CVE-2018-15483 affects group controller firmware. Severity is high (CVSS 7.5). An issue was discovered on KONE Group Controller (KGC) devices before 4.6.5. Denial of Service can occur through the open HTTP interface, aka KONE-04.

Q: How urgent is CVE-2018-15483?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2018-15483 is a high-severity flaw (CVSS 7.5) affecting group controller firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered on KONE Group Controller (KGC) devices before 4.6.5. Denial of Service can occur through the open HTTP interface, aka KONE-04.

Why this priority

High severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.9% (top 21%)
CISA exploited list	No
Weakness	CWE-20
Published	2018-09-07
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: kone

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

Am I affected?

Timeline

2018-09-07 22:29 UTCPublished CVE record published
2026-06-17 01:42 UTCUpdated Record last modified

kone group controller firmware UPGRADE

Affected: < 4.6.5

Fixed in: 4.6.5

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2018-15483?

group controller firmware: upgrade to 4.6.5. Exact commands for each OS are on this page.

Is CVE-2018-15483 being exploited?

CVE-2018-15483 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-2018-15483 affect?

CVE-2018-15483 affects group controller firmware. Severity is high (CVSS 7.5). An issue was discovered on KONE Group Controller (KGC) devices before 4.6.5. Denial of Service can occur through the open HTTP interface, aka KONE-04.

How urgent is CVE-2018-15483?

Priority 51/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2018-15486 CRITICAL 9.1 UPGRADE An issue was discovered on KONE Group Controller (KGC) devices before 4.6.5
CVE-2018-15485 CRITICAL 9.1 UPGRADE An issue was discovered on KONE Group Controller (KGC) devices before 4.6.5
CVE-2018-15484 CRITICAL 9.8 UPGRADE An issue was discovered on KONE Group Controller (KGC) devices before 4.6.5

References

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