CVE-2001-0130: Buffer overflow in HTML parser of the Lotus R5 Domino Server before 5.06, and Domino Client before 5.05, allow

This month

HIGH 10.0DOWNGRADEDOWNGRADE

CVE-2001-0130 is a high-severity flaw (CVSS 10.0) affecting domino r5 client, domino r5 server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in HTML parser of the Lotus R5 Domino Server before 5.06, and Domino Client before 5.05, allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a malformed font size specifier.

Why this priority

Critical severity

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	3.1% (top 12%)
CISA exploited list	No
Published	2001-03-12
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

2001-03-12 05:00 UTCPublished CVE record published
2026-06-16 21:53 UTCUpdated Record last modified

lotus domino r5 client DOWNGRADE

Affected: 5.04 · 5.05

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.04

1. Check installed version

apt-cache policy domino-r5-client || rpm -q domino-r5-client || domino-r5-client --version

2. No fixed release: DOWNGRADE to a release before 5.04 (Debian / Ubuntu)

apt-cache madison domino-r5-client sudo apt install domino-r5-client=<VERSION_BEFORE_5.04> sudo apt-mark hold domino-r5-client

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

dnf --showduplicates list domino-r5-client sudo dnf downgrade domino-r5-client-<VERSION_BEFORE_5.04> sudo dnf versionlock add domino-r5-client

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.

lotus domino r5 server DOWNGRADE

Affected: 5.04 · 5.05 · 5.06

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.04

1. Check installed version

apt-cache policy domino-r5-server || rpm -q domino-r5-server || domino-r5-server --version

2. No fixed release: DOWNGRADE to a release before 5.04 (Debian / Ubuntu)

apt-cache madison domino-r5-server sudo apt install domino-r5-server=<VERSION_BEFORE_5.04> sudo apt-mark hold domino-r5-server

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

dnf --showduplicates list domino-r5-server sudo dnf downgrade domino-r5-server-<VERSION_BEFORE_5.04> sudo dnf versionlock add domino-r5-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-2001-0130?

domino r5 client: downgrade or apply the listed mitigation; domino r5 server: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2001-0130 being exploited?

CVE-2001-0130 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-2001-0130 affect?

CVE-2001-0130 affects domino r5 client, domino r5 server. Severity is high (CVSS 10.0). Buffer overflow in HTML parser of the Lotus R5 Domino Server before 5.06, and Domino Client before 5.05, allows remote attackers to cause a denial of service and possibly execute arbitrary commands via a malformed font size specifier.

How urgent is CVE-2001-0130?

Priority 57/100. Critical severity

References

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