How severe is CVE-2002-1790?

CVE-2002-1790 has a CVSS 2.0 base score of 5.0, rated medium severity.

Is CVE-2002-1790 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 34% (98th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-1790?

CVE-2002-1790 primarily affects Microsoft Exchange Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-1790?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2002-1790 published?

CVE-2002-1790 was published on 2002-12-31 and last updated on 2026-06-16.

CVE-2002-1790

CVE-2002-1790 is a medium-severity vulnerability in Microsoft Exchange Server with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 34% places it in the 98th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Medium (CVSS 2.0 base score 5.0)
EPSS exploit prediction: 34% (98th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Exchange Server
Published: 2002-12-31
Last modified: 2026-06-16

Description

The SMTP service in Microsoft Internet Information Services (IIS) 4.0 and 5.0 allows remote attackers to bypass anti-relaying rules and send spam or spoofed messages via encapsulated SMTP addresses, a similar vulnerability to CVE-1999-0682.

Frequently asked questions

What is CVE-2002-1790?: The SMTP service in Microsoft Internet Information Services (IIS) 4.0 and 5.0 allows remote attackers to bypass anti-relaying rules and send spam or spoofed messages via encapsulated SMTP addresses, a similar vulnerability to CVE-1999-0682.
How severe is CVE-2002-1790?: CVE-2002-1790 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2002-1790 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 34% (98th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-1790?: CVE-2002-1790 primarily affects Microsoft Exchange Server. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-1790?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2002-1790 published?: CVE-2002-1790 was published on 2002-12-31 and last updated on 2026-06-16.

References

Affected products (5)

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:internet_information_server:4.0:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:internet_information_services:5.0:*:*:*:*:*:*:*

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