CVE-2018-7583: Proxy.exe in DualDesk 20 allows Remote Denial Of Service (daemon crash) via a long string to TCP port 5500.

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HIGH 7.5REMOTEDOWNGRADE

CVE-2018-7583 is a high-severity flaw (CVSS 7.5) affecting dualdesk. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Proxy.exe in DualDesk 20 allows Remote Denial Of Service (daemon crash) via a long string to TCP port 5500.

Why this priority

High severity
EPSS top 1%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	38.1% (top 1%)
CISA exploited list	No
Weakness	CWE-20
Published	2018-03-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: advantig

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

Am I affected?

Timeline

2018-03-04 01:29 UTCPublished CVE record published
2026-06-17 02:03 UTCUpdated Record last modified

advantig dualdesk DOWNGRADE

Affected: 20

Fixed in: no fixed release known

Safe to downgrade to: a release before 20

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 20 (Debian / Ubuntu)

apt-cache madison dualdesk sudo apt install dualdesk=<VERSION_BEFORE_20> sudo apt-mark hold dualdesk

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

dnf --showduplicates list dualdesk sudo dnf downgrade dualdesk-<VERSION_BEFORE_20> sudo dnf versionlock add dualdesk

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: DualDesk 20 - 'Proxy.exe' Denial of Service

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-2018-7583?

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

Is CVE-2018-7583 being exploited?

CVE-2018-7583 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-2018-7583 affect?

CVE-2018-7583 affects dualdesk. Severity is high (CVSS 7.5). Proxy.exe in DualDesk 20 allows Remote Denial Of Service (daemon crash) via a long string to TCP port 5500.

How urgent is CVE-2018-7583?

Priority 61/100. High severity; EPSS top 1%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action

References

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