How severe is CVE-2002-0623?

CVE-2002-0623 has a CVSS 2.0 base score of 7.5, rated high severity.

Is CVE-2002-0623 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2002-0623?

CVE-2002-0623 primarily affects Microsoft Commerce Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2002-0623?

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-2002-0623 published?

CVE-2002-0623 was published on 2002-07-03 and last updated on 2026-06-16.

CVE-2002-0623

CVE-2002-0623 is a high-severity vulnerability in Microsoft Commerce Server with a CVSS 2.0 base score of 7.5. Its EPSS exploit-prediction score of 20% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: High (CVSS 2.0 base score 7.5)
EPSS exploit prediction: 20% (97th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Microsoft Commerce Server
Published: 2002-07-03
Last modified: 2026-06-16

Description

Buffer overflow in AuthFilter ISAPI filter on Microsoft Commerce Server 2000 and 2002 allows remote attackers to execute arbitrary code via long authentication data, aka "New Variant of the ISAPI Filter Buffer Overrun".

Frequently asked questions

What is CVE-2002-0623?: Buffer overflow in AuthFilter ISAPI filter on Microsoft Commerce Server 2000 and 2002 allows remote attackers to execute arbitrary code via long authentication data, aka "New Variant of the ISAPI Filter Buffer Overrun".
How severe is CVE-2002-0623?: CVE-2002-0623 has a CVSS 2.0 base score of 7.5, rated high severity.
Is CVE-2002-0623 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 20% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2002-0623?: CVE-2002-0623 primarily affects Microsoft Commerce Server. In total, 4 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2002-0623?: 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-2002-0623 published?: CVE-2002-0623 was published on 2002-07-03 and last updated on 2026-06-16.

References

Affected products (4)

cpe:2.3:a:microsoft:commerce_server:2000:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:commerce_server:2000:sp1:*:*:*:*:*:*
cpe:2.3:a:microsoft:commerce_server:2000:sp2:*:*:*:*:*:*
cpe:2.3:a:microsoft:commerce_server:2002:*:*:*:*:*:*:*

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