CVE-2000-0394: NetProwler 3.0 allows remote attackers to cause a denial of service by sending malformed IP packets that trigg

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MEDIUM 5.0DOWNGRADE

CVE-2000-0394 is a medium-severity flaw (CVSS 5.0) affecting netprowler. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

NetProwler 3.0 allows remote attackers to cause a denial of service by sending malformed IP packets that trigger NetProwler's Man-in-the-Middle signature.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	3.4% (top 11%)
CISA exploited list	No
Published	2000-05-18
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: axent

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

Am I affected?

Timeline

2000-05-18 04:00 UTCPublished CVE record published
2026-06-16 21:51 UTCUpdated Record last modified

axent netprowler DOWNGRADE

Affected: 3.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 3.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 3.0 (Debian / Ubuntu)

apt-cache madison netprowler sudo apt install netprowler=<VERSION_BEFORE_3.0> sudo apt-mark hold netprowler

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

dnf --showduplicates list netprowler sudo dnf downgrade netprowler-<VERSION_BEFORE_3.0> sudo dnf versionlock add netprowler

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: Axent NetProwler 3.0 - IP Packets Denial of Service (1)
Exploit-DB: Axent NetProwler 3.0 - IP Packets Denial of Service (2)

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-2000-0394?

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

Is CVE-2000-0394 being exploited?

CVE-2000-0394 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-2000-0394 affect?

CVE-2000-0394 affects netprowler. Severity is medium (CVSS 5.0). NetProwler 3.0 allows remote attackers to cause a denial of service by sending malformed IP packets that trigger NetProwler's Man-in-the-Middle signature.

How urgent is CVE-2000-0394?

Priority 45/100. Public exploit reference

Related CVEs

CVE-2001-0645 HIGH 7.5 DOWNGRADE Symantec/AXENT NetProwler 3.5.x contains several default passwords, which could allow remote attackers to (1)

References

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