CVE-2001-0260: Buffer overflow in Lotus Domino Mail Server 5.0.5 and earlier allows a remote attacker to crash the server or

Q: How do I fix CVE-2001-0260?

domino mail server: upgrade to newer than 5.0.5. Exact commands for each OS are on this page.

Q: Is CVE-2001-0260 being exploited?

CVE-2001-0260 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2001-0260 affect?

CVE-2001-0260 affects domino mail server. Severity is high (CVSS 7.5). Buffer overflow in Lotus Domino Mail Server 5.0.5 and earlier allows a remote attacker to crash the server or execute arbitrary code via a long "RCPT TO" command.

Q: How urgent is CVE-2001-0260?

Priority 54/100. High severity; EPSS top 10%: very likely to be exploited; Public exploit reference

This month

HIGH 7.5UPGRADE

CVE-2001-0260 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.

Buffer overflow in Lotus Domino Mail Server 5.0.5 and earlier allows a remote attacker to crash the server or execute arbitrary code via a long "RCPT TO" command.

Why this priority

High severity
EPSS top 10%: very likely to be exploited
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.9% (top 10%)
CISA exploited list	No
Published	2001-06-02
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

2001-06-02 04:00 UTCPublished CVE record published
2026-06-16 21:53 UTCUpdated Record last modified

lotus domino mail server UPGRADE

Affected: <= 5.0.5

Fixed in: newer than 5.0.5

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 5.0.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade domino-mail-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade domino-mail-server

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2001-0260?

domino mail server: upgrade to newer than 5.0.5. Exact commands for each OS are on this page.

Is CVE-2001-0260 being exploited?

CVE-2001-0260 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-2001-0260 affect?

CVE-2001-0260 affects domino mail server. Severity is high (CVSS 7.5). Buffer overflow in Lotus Domino Mail Server 5.0.5 and earlier allows a remote attacker to crash the server or execute arbitrary code via a long "RCPT TO" command.

How urgent is CVE-2001-0260?

Priority 54/100. High severity; EPSS top 10%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2001-1445 HIGH 7.5 DOWNGRADE Unknown vulnerability in the SMTP server in Lotus Domino 5.0 through 5.7 allows remote attackers to bypass mai
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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