CVE-2018-5694: The callforward module in User Control Panel (UCP) in Nicolas Gudino (aka Asternic) Flash Operator Panel (FOP)

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HIGH 8.8DOWNGRADE

CVE-2018-5694 is a high-severity flaw (CVSS 8.8) affecting flash operator panel. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The callforward module in User Control Panel (UCP) in Nicolas Gudino (aka Asternic) Flash Operator Panel (FOP) 2.31.03 allows remote authenticated users to execute arbitrary commands via the command parameter.

Why this priority

High severity
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	2.4% (top 16%)
CISA exploited list	No
Published	2018-01-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: fop2

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

Am I affected?

Timeline

2018-01-14 04:29 UTCPublished CVE record published
2026-06-17 02:00 UTCUpdated Record last modified

fop2 flash operator panel DOWNGRADE

Affected: 2.31.03

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.31.03

1. Check installed version

apt-cache policy flash-operator-panel || rpm -q flash-operator-panel || flash-operator-panel --version

2. No fixed release: DOWNGRADE to a release before 2.31.03 (Debian / Ubuntu)

apt-cache madison flash-operator-panel sudo apt install flash-operator-panel=<VERSION_BEFORE_2.31.03> sudo apt-mark hold flash-operator-panel

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

dnf --showduplicates list flash-operator-panel sudo dnf downgrade flash-operator-panel-<VERSION_BEFORE_2.31.03> sudo dnf versionlock add flash-operator-panel

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-2018-5694?

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

Is CVE-2018-5694 being exploited?

CVE-2018-5694 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-2018-5694 affect?

CVE-2018-5694 affects flash operator panel. Severity is high (CVSS 8.8). The callforward module in User Control Panel (UCP) in Nicolas Gudino (aka Asternic) Flash Operator Panel (FOP) 2.31.03 allows remote authenticated users to execute arbitrary commands via the command parameter.

How urgent is CVE-2018-5694?

Priority 57/100. High severity; Public exploit reference

References

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