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Servers and applications

CVE-2009-0099

The Electronic Messaging System Microsoft Data Base (EMSMDB32) provider in Microsoft Exchange 2000 Server SP3 and Exchange Server 2003 SP2, as used in Exchange System Attendant, allows remote attackers to cause a denial of service (application outage) via a malformed MAPI command, aka "Literal Processing Vulnerability."

Severity
Medium 5.0
Published
10 Feb 2009
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
26% in the next 30 daysHigher than 98% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Improper input validation (CWE-20)
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
Microsoft Exchange ServerServers and applications · cpe:a:microsoft:exchange_server
  • Version 2000-sp3
  • Version 2003-sp2
  • Version 2007-sp1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2009-0099
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2009-0099