CVE-2002-1945: Buffer overflow in SmartMail Server 1.0 Beta 10 allows remote attackers to cause a denial of service (crash) v

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MEDIUM 5.0DOWNGRADE

CVE-2002-1945 is a medium-severity flaw (CVSS 5.0) affecting smartmail server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Buffer overflow in SmartMail Server 1.0 Beta 10 allows remote attackers to cause a denial of service (crash) via a long request to (1) TCP port 25 (SMTP) or (2) TCP port 110 (POP3).

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	3.3% (top 11%)
CISA exploited list	No
Published	2002-12-31
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: virtualzone

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

Am I affected?

Timeline

2002-12-31 05:00 UTCPublished CVE record published
2026-06-16 22:00 UTCUpdated Record last modified

virtualzone smartmail server DOWNGRADE

Affected: 1.0_beta_10

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.0_beta_10

1. Check installed version

apt-cache policy smartmail-server || rpm -q smartmail-server || smartmail-server --version

2. No fixed release: DOWNGRADE to a release before 1.0_beta_10 (Debian / Ubuntu)

apt-cache madison smartmail-server sudo apt install smartmail-server=<VERSION_BEFORE_1.0_beta_10> sudo apt-mark hold smartmail-server

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

dnf --showduplicates list smartmail-server sudo dnf downgrade smartmail-server-<VERSION_BEFORE_1.0_beta_10> sudo dnf versionlock add smartmail-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: SmartMail Server 1.0 Beta 10 - Oversized Request 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-2002-1945?

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

Is CVE-2002-1945 being exploited?

CVE-2002-1945 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-2002-1945 affect?

CVE-2002-1945 affects smartmail server. Severity is medium (CVSS 5.0). Buffer overflow in SmartMail Server 1.0 Beta 10 allows remote attackers to cause a denial of service (crash) via a long request to (1) TCP port 25 (SMTP) or (2) TCP port 110 (POP3).

How urgent is CVE-2002-1945?

Priority 45/100. Public exploit reference

Related CVEs

CVE-2002-1862 MEDIUM 5.0 DOWNGRADE SmartMail Server 2.0 allows remote attackers to cause a denial of service (crash) by sending data and closing

References

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