How severe is CVE-2003-0714?

CVE-2003-0714 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2003-0714 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 76% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2003-0714?

CVE-2003-0714 primarily affects Microsoft Exchange Server. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2003-0714?

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-2003-0714 published?

CVE-2003-0714 was published on 2003-11-17 and last updated on 2026-06-16.

CVE-2003-0714

CVE-2003-0714 is a high-severity vulnerability in Microsoft Exchange Server with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 76% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-400.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 76% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Microsoft Exchange Server
Published: 2003-11-17
Last modified: 2026-06-16

Description

The Internet Mail Service in Exchange Server 5.5 and Exchange 2000 allows remote attackers to cause a denial of service (memory exhaustion) by directly connecting to the SMTP service and sending a certain extended verb request, possibly triggering a buffer overflow in Exchange 2000.

Frequently asked questions

What is CVE-2003-0714?: The Internet Mail Service in Exchange Server 5.5 and Exchange 2000 allows remote attackers to cause a denial of service (memory exhaustion) by directly connecting to the SMTP service and sending a certain extended verb request, possibly triggering a buffer overflow in Exchange 2000.
How severe is CVE-2003-0714?: CVE-2003-0714 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2003-0714 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 76% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2003-0714?: CVE-2003-0714 primarily affects Microsoft Exchange Server. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2003-0714?: 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-2003-0714 published?: CVE-2003-0714 was published on 2003-11-17 and last updated on 2026-06-16.

References

Affected products (9)

cpe:2.3:a:microsoft:exchange_server:5.5:-:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:5.5:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:5.5:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:5.5:sp3:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:5.5:sp4:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:2000:-:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:2000:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:2000:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:exchange_server:2000:sp3:*:*:*:*:*:*

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