CVE-2005-1931: GoodTech SMTP Server 5.14 allows remote attackers to cause a denial of service (application crash) via a RCPT

This month

MEDIUM 5.0DOWNGRADE

CVE-2005-1931 is a medium-severity flaw (CVSS 5.0) affecting goodtech smtp server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

GoodTech SMTP Server 5.14 allows remote attackers to cause a denial of service (application crash) via a RCPT TO command with an invalid argument, as demonstrated using an "A" character.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.5% (top 16%)
CISA exploited list	No
Published	2005-07-05
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: goodtech systems

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

Am I affected?

Timeline

2005-07-05 04:00 UTCPublished CVE record published
2026-06-16 22:13 UTCUpdated Record last modified

goodtech systems goodtech smtp server DOWNGRADE

Affected: 5.14

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.14

1. Check installed version

apt-cache policy goodtech-smtp-server || rpm -q goodtech-smtp-server || goodtech-smtp-server --version

2. No fixed release: DOWNGRADE to a release before 5.14 (Debian / Ubuntu)

apt-cache madison goodtech-smtp-server sudo apt install goodtech-smtp-server=<VERSION_BEFORE_5.14> sudo apt-mark hold goodtech-smtp-server

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

dnf --showduplicates list goodtech-smtp-server sudo dnf downgrade goodtech-smtp-server-<VERSION_BEFORE_5.14> sudo dnf versionlock add goodtech-smtp-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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: GoodTech SMTP Server 5.14 - Denial of Service

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-2005-1931?

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

Is CVE-2005-1931 being exploited?

CVE-2005-1931 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-2005-1931 affect?

CVE-2005-1931 affects goodtech smtp server. Severity is medium (CVSS 5.0). GoodTech SMTP Server 5.14 allows remote attackers to cause a denial of service (application crash) via a RCPT TO command with an invalid argument, as demonstrated using an "A" character.

How urgent is CVE-2005-1931?

Priority 44/100. Public exploit reference

Related CVEs

CVE-2005-2387 HIGH 7.5 DOWNGRADE Multiple stack-based buffer overflows in GoodTech SMTP server 5.16 allow remote attackers to execute arbitrary

References

← Back to latest CVEs