CVE-2000-0021: Lotus Domino HTTP server allows remote attackers to determine the real path of the server via a request to a n

Routine

MEDIUM 5.0DOWNGRADE

CVE-2000-0021 is a medium-severity flaw (CVSS 5.0) affecting domino server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Lotus Domino HTTP server allows remote attackers to determine the real path of the server via a request to a non-existent script in /cgi-bin.

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	1999-12-01
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: lotus

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

Am I affected?

Timeline

1999-12-01 05:00 UTCPublished CVE record published
2026-06-16 21:50 UTCUpdated Record last modified

lotus domino server DOWNGRADE

Affected: 4.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.6

1. Check installed version

apt-cache policy domino-server || rpm -q domino-server || domino-server --version

2. No fixed release: DOWNGRADE to a release before 4.6 (Debian / Ubuntu)

apt-cache madison domino-server sudo apt install domino-server=<VERSION_BEFORE_4.6> sudo apt-mark hold domino-server

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

dnf --showduplicates list domino-server sudo dnf downgrade domino-server-<VERSION_BEFORE_4.6> sudo dnf versionlock add domino-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-2000-0021?

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

Is CVE-2000-0021 being exploited?

CVE-2000-0021 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-2000-0021 affect?

CVE-2000-0021 affects domino server. Severity is medium (CVSS 5.0). Lotus Domino HTTP server allows remote attackers to determine the real path of the server via a request to a non-existent script in /cgi-bin.

How urgent is CVE-2000-0021?

Priority 35/100. No elevated risk signals yet.

Related CVEs

CVE-2003-1408 MEDIUM 5.0 DOWNGRADE Lotus Domino Server 5.0 and 6.0 allows remote attackers to read the source code for files via an HTTP request
CVE-2001-0009 MEDIUM 5.0 DOWNGRADE Directory traversal vulnerability in Lotus Domino 5.0.5 web server allows remote attackers to read arbitrary f
CVE-2000-0023 MEDIUM 5.0 DOWNGRADE Buffer overflow in Lotus Domino HTTP server allows remote attackers to cause a denial of service via a long UR
CVE-2000-0022 MEDIUM 5.0 DOWNGRADE Lotus Domino HTTP server does not properly disable anonymous access for the cgi-bin directory.

References

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