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Servers and applications

CVE-2003-0904

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.

Severity
Medium 6.0
Published
20 Jan 2004
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
8.1% in the next 30 daysHigher than 94% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Information exposure (CWE-200)
Attack
Over the network · Needs a login
Attacker can
Read some data · Change some data · Slow it down
CVSS vector
AV:N/AC:M/Au:S/C:P/I:P/A:P
Sources
NVD

Affected software

SoftwareAffected versions
Microsoft Exchange ServerServers and applications · cpe:a:microsoft:exchange_server
  • Version 2003

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2003-0904
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2003-0904