CVE-2003-1323: Elm ME+ 2.4 before PL109S, when installed setgid mail and the operating system lacks POSIX saved ID support, a

Routine

MEDIUM 6.8DOWNGRADE

CVE-2003-1323 is a medium-severity flaw (CVSS 6.8) affecting elm. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Elm ME+ 2.4 before PL109S, when installed setgid mail and the operating system lacks POSIX saved ID support, allows local users to read and modify certain files with the privileges of the mail group via unspecified vectors.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.8 (Medium)
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Published	2003-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: elm development group

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 22:03 UTCUpdated Record last modified

elm development group elm DOWNGRADE

Affected: 2.4

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.4

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 2.4 (Debian / Ubuntu)

apt-cache madison elm sudo apt install elm=<VERSION_BEFORE_2.4> sudo apt-mark hold elm

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

dnf --showduplicates list elm sudo dnf downgrade elm-<VERSION_BEFORE_2.4> sudo dnf versionlock add elm

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-2003-1323?

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

Is CVE-2003-1323 being exploited?

CVE-2003-1323 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-2003-1323 affect?

CVE-2003-1323 affects elm. Severity is medium (CVSS 6.8). Elm ME+ 2.4 before PL109S, when installed setgid mail and the operating system lacks POSIX saved ID support, allows local users to read and modify certain files with the privileges of the mail group via unspecified vectors.

How urgent is CVE-2003-1323?

Priority 39/100. No elevated risk signals yet.

Related CVEs

CVE-2003-0966 HIGH 7.5 UPGRADE Buffer overflow in the frm command in elm 2.5.6 and earlier, and possibly later versions, allows remote attack
CVE-2001-1174 HIGH 7.5 UPGRADE Buffer overflow in Elm 2.5.5 and earlier allows remote attackers to execute arbitrary code via a long Message-
CVE-1999-1334 HIGH 7.5 DOWNGRADE Multiple buffer overflows in filter command in Elm 2.4 allows attackers to execute arbitrary commands via (1)

References

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