Is CVE-2002-1123 in the CISA KEV catalog?

No. CVE-2002-1123 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2002-1123?

CVE-2002-1123 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2002-1123?

CVE-2002-1123 has an EPSS score of 77.71% (100th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2002-1123

HIGHEPSS 100th pctl

7.5

CVSS v2

NVD

Description

Buffer overflow in the authentication function for Microsoft SQL Server 2000 and Microsoft Desktop Engine (MSDE) 2000 allows remote attackers to execute arbitrary code via a long request to TCP port 1433, aka the "Hello" overflow.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

77.71%probability of exploitation in 30 days

100thpercentile

Very high risk: more likely to be exploited than 100% of all known CVEs.

References

http://marc.info/?l=bugtraq&m=102873609025020&w=2
http://online.securityfocus.com/archive/1/286220
http://www.ciac.org/ciac/bulletins/n-003.shtml
http://www.iss.net/security_center/static/9788.php
http://www.securityfocus.com/bid/5411
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2002/ms02-056

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-16.