CVE-2004-1586: Flash Messaging clients can ignore disconnecting commands such as "shutdown" from the Flash Messaging Server 5

Routine

LOW 2.1DOWNGRADE

CVE-2004-1586 is a low-severity flaw (CVSS 2.1) affecting flash messaging server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Flash Messaging clients can ignore disconnecting commands such as "shutdown" from the Flash Messaging Server 5.2.0g (rev 1.1.2), which could allow remote attackers to stay connected.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	2.1 (Low)
EPSS exploit chance	0.8% (top 44%)
CISA exploited list	No
Published	2004-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: jera technology

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2004-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:07 UTCUpdated Record last modified

jera technology flash messaging server DOWNGRADE

Affected: 5.2.0g

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.2.0g

1. Check installed version

apt-cache policy flash-messaging-server || rpm -q flash-messaging-server || flash-messaging-server --version

2. No fixed release: DOWNGRADE to a release before 5.2.0g (Debian / Ubuntu)

apt-cache madison flash-messaging-server sudo apt install flash-messaging-server=<VERSION_BEFORE_5.2.0g> sudo apt-mark hold flash-messaging-server

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

dnf --showduplicates list flash-messaging-server sudo dnf downgrade flash-messaging-server-<VERSION_BEFORE_5.2.0g> sudo dnf versionlock add flash-messaging-server

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-2004-1586?

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

Is CVE-2004-1586 being exploited?

CVE-2004-1586 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-2004-1586 affect?

CVE-2004-1586 affects flash messaging server. Severity is low (CVSS 2.1). Flash Messaging clients can ignore disconnecting commands such as "shutdown" from the Flash Messaging Server 5.2.0g (rev 1.1.2), which could allow remote attackers to stay connected.

How urgent is CVE-2004-1586?

Priority 26/100. Public exploit reference

References

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