How severe is CVE-2000-0318?

CVE-2000-0318 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2000-0318 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2000-0318?

CVE-2000-0318 affects Atrium Software Mercur Mailserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2000-0318?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2000-0318 published?

CVE-2000-0318 was published on 2000-04-21 and last updated on 2026-06-16.

CVE-2000-0318

CVE-2000-0318 is a high-severity vulnerability in Atrium Software Mercur Mailserver with a CVSS 2.0 base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 1% (64th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Atrium Software Mercur Mailserver
Published: 2000-04-21
Last modified: 2026-06-16

Description

Atrium Mercur Mail Server 3.2 allows local attackers to read other user's email and create arbitrary files via a dot dot (..) attack.

Frequently asked questions

What is CVE-2000-0318?: Atrium Mercur Mail Server 3.2 allows local attackers to read other user's email and create arbitrary files via a dot dot (..) attack.
How severe is CVE-2000-0318?: CVE-2000-0318 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2000-0318 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (64th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2000-0318?: CVE-2000-0318 affects Atrium Software Mercur Mailserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2000-0318?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2000-0318 published?: CVE-2000-0318 was published on 2000-04-21 and last updated on 2026-06-16.

References

Affected products (1)

cpe:2.3:a:atrium_software:mercur_mailserver:3.2:*:*:*:*:*:*:*

More vulnerabilities in Atrium Software Mercur Mailserver

CVE-2003-1322 — Critical (CVSS 10.0): Multiple stack-based buffer overflows in Atrium MERCUR IMAPD in MERCUR Mailserver before 4.2.15.0 allow remote…
CVE-2003-1177 — High (CVSS 7.5): Buffer overflow in the base64 decoder in MERCUR Mailserver 4.2 before SP3a allows remote attackers to cause a denial of…
CVE-2002-1073 — High (CVSS 7.5): Buffer overflow in the control service for MERCUR Mailserver 4.2 allows remote attackers to execute arbitrary code via…
CVE-2000-0239 — Medium (CVSS 5.0): Buffer overflow in the MERCUR WebView WebMail server allows remote attackers to cause a denial of service via a long…
CVE-2000-0198 — Medium (CVSS 5.0): Buffer overflow in POP3 and IMAP servers in the MERCUR mail server suite allows remote attackers to cause a denial of…

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