CVE-2001-1445: Unknown vulnerability in the SMTP server in Lotus Domino 5.0 through 5.7 allows remote attackers to bypass mai

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HIGH 7.5DOWNGRADE

CVE-2001-1445 is a high-severity flaw (CVSS 7.5) affecting domino mail server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unknown vulnerability in the SMTP server in Lotus Domino 5.0 through 5.7 allows remote attackers to bypass mail relaying restrictions via crafted e-mail addresses in "RCPT TO" commands.

Why this priority

High severity

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

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	1.9% (top 20%)
CISA exploited list	No
Published	2001-03-01
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

2001-03-01 05:00 UTCPublished CVE record published
2026-06-16 21:56 UTCUpdated Record last modified

lotus domino mail server DOWNGRADE

Affected: 5.0.0 · 5.0.1 · 5.0.2 · 5.0.2b · 5.0.3 · 5.0.4 · 5.0.5 · 5.0.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0.0

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 5.0.0 (Debian / Ubuntu)

apt-cache madison domino-mail-server sudo apt install domino-mail-server=<VERSION_BEFORE_5.0.0> sudo apt-mark hold domino-mail-server

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

dnf --showduplicates list domino-mail-server sudo dnf downgrade domino-mail-server-<VERSION_BEFORE_5.0.0> sudo dnf versionlock add domino-mail-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-2001-1445?

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

Is CVE-2001-1445 being exploited?

CVE-2001-1445 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-2001-1445 affect?

CVE-2001-1445 affects domino mail server. Severity is high (CVSS 7.5). Unknown vulnerability in the SMTP server in Lotus Domino 5.0 through 5.7 allows remote attackers to bypass mail relaying restrictions via crafted e-mail addresses in "RCPT TO" commands.

How urgent is CVE-2001-1445?

Priority 46/100. High severity

Related CVEs

CVE-2001-0260 HIGH 7.5 UPGRADE Buffer overflow in Lotus Domino Mail Server 5.0.5 and earlier allows a remote attacker to crash the server or
CVE-2000-1047 HIGH 10.0 DOWNGRADE DOWNGRADE Buffer overflow in SMTP service of Lotus Domino 5.0.4 and earlier allows remote attackers to cause a denial of
CVE-2000-0452 MEDIUM 5.0 DOWNGRADE DOWNGRADE Buffer overflow in the ESMTP service of Lotus Domino Server 5.0.1 allows remote attackers to cause a denial of

References

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