How severe is CVE-2003-1322?

CVE-2003-1322 has a CVSS 2.0 base score of 10.0, rated critical severity.

Is CVE-2003-1322 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-1322?

CVE-2003-1322 affects Atrium Software Mercur Mailserver. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2003-1322?

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

When was CVE-2003-1322 published?

CVE-2003-1322 was published on 2003-12-31 and last updated on 2026-06-16.

CVE-2003-1322

CVE-2003-1322 is a critical-severity vulnerability in Atrium Software Mercur Mailserver with a CVSS 2.0 base score of 10.0. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low.

Key facts

Severity: Critical (CVSS 2.0 base score 10.0)
EPSS exploit prediction: 6% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Atrium Software Mercur Mailserver
Published: 2003-12-31
Last modified: 2026-06-16

Description

Multiple stack-based buffer overflows in Atrium MERCUR IMAPD in MERCUR Mailserver before 4.2.15.0 allow remote attackers to execute arbitrary code via a long (1) EXAMINE, (2) DELETE, (3) SUBSCRIBE, (4) RENAME, (5) UNSUBSCRIBE, (6) LIST, (7) LSUB, (8) STATUS, (9) LOGIN, (10) CREATE, or (11) SELECT command.

Frequently asked questions

What is CVE-2003-1322?: Multiple stack-based buffer overflows in Atrium MERCUR IMAPD in MERCUR Mailserver before 4.2.15.0 allow remote attackers to execute arbitrary code via a long (1) EXAMINE, (2) DELETE, (3) SUBSCRIBE, (4) RENAME, (5) UNSUBSCRIBE, (6) LIST, (7) LSUB, (8) STATUS, (9) LOGIN, (10) CREATE, or (11) SELECT command.
How severe is CVE-2003-1322?: CVE-2003-1322 has a CVSS 2.0 base score of 10.0, rated critical severity.
Is CVE-2003-1322 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-1322?: CVE-2003-1322 affects Atrium Software Mercur Mailserver. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2003-1322?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2003-1322 published?: CVE-2003-1322 was published on 2003-12-31 and last updated on 2026-06-16.

References

Affected products (1)

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

More vulnerabilities in Atrium Software Mercur Mailserver

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-2000-0318 — High (CVSS 7.5): Atrium Mercur Mail Server 3.2 allows local attackers to read other user's email and create arbitrary files via a dot…
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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