CVE-2004-1631: Open WorkFlow Engine (OpenWFE) 1.4.x allows remote attackers to conduct port scans of remote hosts by specifyi

Routine

MEDIUM 5.0DOWNGRADE

CVE-2004-1631 is a medium-severity flaw (CVSS 5.0) affecting work flow engine. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Open WorkFlow Engine (OpenWFE) 1.4.x allows remote attackers to conduct port scans of remote hosts by specifying the target in an rmi:// Worklist URL, then using the response times to infer the results.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.4% (top 28%)
CISA exploited list	No
Published	2004-10-25
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: openwfe

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

Am I affected?

Timeline

2004-10-25 04:00 UTCPublished CVE record published
2026-06-16 22:08 UTCUpdated Record last modified

openwfe work flow engine DOWNGRADE

Affected: 1.4 · 1.4.1 · 1.4.2 · 1.4.3 · 1.4.4 · 1.4.5

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.4

1. Check installed version

apt-cache policy work-flow-engine || rpm -q work-flow-engine || work-flow-engine --version

2. No fixed release: DOWNGRADE to a release before 1.4 (Debian / Ubuntu)

apt-cache madison work-flow-engine sudo apt install work-flow-engine=<VERSION_BEFORE_1.4> sudo apt-mark hold work-flow-engine

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

dnf --showduplicates list work-flow-engine sudo dnf downgrade work-flow-engine-<VERSION_BEFORE_1.4> sudo dnf versionlock add work-flow-engine

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-2004-1631?

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

Is CVE-2004-1631 being exploited?

CVE-2004-1631 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-2004-1631 affect?

CVE-2004-1631 affects work flow engine. Severity is medium (CVSS 5.0). Open WorkFlow Engine (OpenWFE) 1.4.x allows remote attackers to conduct port scans of remote hosts by specifying the target in an rmi:// Worklist URL, then using the response times to infer the results.

How urgent is CVE-2004-1631?

Priority 36/100. No elevated risk signals yet.

Related CVEs

CVE-2004-1630 MEDIUM 4.3 DOWNGRADE Cross-site scripting (XSS) vulnerability in the login form in Open WorkFlow Engine (OpenWFE) 1.4.x allows remo

References

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