CVE-2003-1367: The which_access variable for Majordomo 2.0 through 1.94.4, and possibly earlier versions, is set to "open" by

Q: How do I fix CVE-2003-1367?

majordomo: upgrade to newer than 2.0. Exact commands for each OS are on this page.

Q: Is CVE-2003-1367 being exploited?

CVE-2003-1367 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-2003-1367 affect?

CVE-2003-1367 affects majordomo. Severity is high (CVSS 7.8). The which_access variable for Majordomo 2.0 through 1.94.4, and possibly earlier versions, is set to "open" by default, which allows remote attackers to identify the email addresses of members of mailing lists via a "which" command.

Q: How urgent is CVE-2003-1367?

Priority 51/100. High severity; Public exploit reference

This month

HIGH 7.8UPGRADE

CVE-2003-1367 is a high-severity flaw (CVSS 7.8) affecting majordomo. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The which_access variable for Majordomo 2.0 through 1.94.4, and possibly earlier versions, is set to "open" by default, which allows remote attackers to identify the email addresses of members of mailing lists via a "which" command.

Why this priority

High severity
Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
EPSS exploit chance	1.6% (top 25%)
CISA exploited list	No
Weakness	CWE-16
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: great circle associates

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

Am I affected?

Timeline

2003-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:04 UTCUpdated Record last modified

great circle associates majordomo UPGRADE

Affected: <= 2.0 · 1.94.4 · 1.94.5

Fixed in: newer than 2.0

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to newer than 2.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade majordomo

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade majordomo

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-2003-1367?

majordomo: upgrade to newer than 2.0. Exact commands for each OS are on this page.

Is CVE-2003-1367 being exploited?

CVE-2003-1367 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-2003-1367 affect?

CVE-2003-1367 affects majordomo. Severity is high (CVSS 7.8). The which_access variable for Majordomo 2.0 through 1.94.4, and possibly earlier versions, is set to "open" by default, which allows remote attackers to identify the email addresses of members of mailing lists via a "which" command.

How urgent is CVE-2003-1367?

Priority 51/100. High severity; Public exploit reference

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References

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