Microsoft Exchange 2003 and Outlook Web Access (OWA), when configured to use NTLM authentication, does not properly reuse HTTP connections, which can cause OWA users to view mailboxes of other users when Kerberos has been disabled as an authentication method for IIS 6.0, e.g. when SharePoint Services 2.0 is installed.
CVE-2003-0904
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 8%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 94.2%
- KEV
- Not listed
Published
January 20, 2004
Last Modified
June 16, 2026
References (18)
- cve@mitrehttp://secunia.com/advisories/10615
- cve@mitrehttp://www.kb.cert.org/vuls/id/530660
- cve@mitrehttp://www.microsoft.com/exchange/support/e2k3owa.asp
- cve@mitrehttp://www.ntbugtraq.com/default.asp?pid=36&sid=1&A2=ind0311&L=ntbugtraq&F=P&S=&P=9281
- cve@mitrehttp://www.securityfocus.com/bid/9118
- cve@mitrehttp://www.securityfocus.com/bid/9409
- cve@mitrehttps://docs.microsoft.com/en-us/security-updates/securitybulletins/2004/ms04-002
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/13869
- cve@mitrehttps://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A477
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/10615
- af854a3a-2127-422b-91ae-364da2661108http://www.kb.cert.org/vuls/id/530660
- af854a3a-2127-422b-91ae-364da2661108http://www.microsoft.com/exchange/support/e2k3owa.asp
- af854a3a-2127-422b-91ae-364da2661108http://www.ntbugtraq.com/default.asp?pid=36&sid=1&A2=ind0311&L=ntbugtraq&F=P&S=&P=9281
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/9118
- af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/9409
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 4× in last 7d / 27× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:22 UTCEPSS rescore
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- 2026-07-08 15:09 UTCEPSS rescore
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- 2026-06-13 22:56 UTCEPSS rescore
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- 2026-06-01 13:49 UTCEPSS rescore
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- 2026-05-31 22:28 UTCEPSS rescore
- 2026-05-31 16:39 UTCEG score recompute
- 2026-05-31 16:39 UTCGHSA enrichment
- 2026-05-31 00:13 UTCEPSS rescore
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- 2026-05-29 13:40 UTCEPSS rescore
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- 2026-05-28 13:42 UTCEPSS rescore
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- 2026-05-27 13:37 UTCEPSS rescore
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- 2026-05-26 07:16 UTCEPSS rescore
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- 2026-05-20 11:20 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
- 2026-05-18 21:29 UTCEPSS rescore
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Same CWE
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Frequently asked(4)
What is CVE-2003-0904?
CVE-2003-0904 is a none vulnerability published on January 20, 2004. Microsoft Exchange 2003 and Outlook Web Access (OWA), when configured to use NTLM authentication, does not properly reuse HTTP connections, which can cause OWA users to view mailboxes of other users when Kerberos has been disabled as an authentication method for IIS 6.0, e.g. when SharePoint…
When was CVE-2003-0904 disclosed?
CVE-2003-0904 was first published in the National Vulnerability Database on January 20, 2004, with the most recent update on June 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2003-0904 actively exploited?
CVE-2003-0904 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 94.2% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2003-0904?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2003-0904, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
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