Is CVE-2004-0123 in the CISA KEV catalog?

No. CVE-2004-0123 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2004-0123?

CVE-2004-0123 has a CVSS v2 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2004-0123?

CVE-2004-0123 has an EPSS score of 29.61% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2004-0123

HIGHEPSS 98th pctl

7.5

CVSS v2

NVD

Description

Double free vulnerability in the ASN.1 library as used in Windows NT 4.0, Windows 2000, Windows XP, and Windows Server 2003, allows remote attackers to cause a denial of service and possibly execute arbitrary code.

CWE-119Buffer Overflow

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

29.61%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

References

http://www.ciac.org/ciac/bulletins/o-114.shtml
http://www.kb.cert.org/vuls/id/255924
http://www.securityfocus.com/bid/10118
http://www.us-cert.gov/cas/techalerts/TA04-104A.html
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-011
https://exchange.xforce.ibmcloud.com/vulnerabilities/15713
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1007
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1076
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A924

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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.