CVE-2001-0585: Gordano NTMail 6.0.3c allows a remote attacker to create a denial of service via a long (>= 255 characters) UR

Routine

MEDIUM 5.0DOWNGRADE

CVE-2001-0585 is a medium-severity flaw (CVSS 5.0) affecting ntmail. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Gordano NTMail 6.0.3c allows a remote attacker to create a denial of service via a long (>= 255 characters) URL request to port 8000 or port 9000.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.6% (top 24%)
CISA exploited list	No
Published	2001-08-22
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: gordano

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

Am I affected?

Timeline

2001-08-22 04:00 UTCPublished CVE record published
2026-06-16 21:54 UTCUpdated Record last modified

gordano ntmail DOWNGRADE

Affected: 6.0.3c

Fixed in: no fixed release known

Safe to downgrade to: a release before 6.0.3c

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 6.0.3c (Debian / Ubuntu)

apt-cache madison ntmail sudo apt install ntmail=<VERSION_BEFORE_6.0.3c> sudo apt-mark hold ntmail

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

dnf --showduplicates list ntmail sudo dnf downgrade ntmail-<VERSION_BEFORE_6.0.3c> sudo dnf versionlock add ntmail

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-2001-0585?

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

Is CVE-2001-0585 being exploited?

CVE-2001-0585 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-2001-0585 affect?

CVE-2001-0585 affects ntmail. Severity is medium (CVSS 5.0). Gordano NTMail 6.0.3c allows a remote attacker to create a denial of service via a long (>= 255 characters) URL request to port 8000 or port 9000.

How urgent is CVE-2001-0585?

Priority 36/100. No elevated risk signals yet.

Related CVEs

CVE-2002-2408 HIGH 7.5 DOWNGRADE Gordano Messaging Server (GMS) Mail 8 (a.k.a
CVE-2000-0859 MEDIUM 5.0 DOWNGRADE The web configuration server for NTMail V5 and V6 allows remote attackers to cause a denial of service via a s

References

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