All vulnerabilities

Servers and applications

CVE-2000-1006

Microsoft Exchange Server 5.5 does not properly handle a MIME header with a blank charset specified, which allows remote attackers to cause a denial of service via a charset="" command, aka the "Malformed MIME Header" vulnerability.

Severity
Medium 5.0
Published
11 Dec 2000
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
15% in the next 30 daysHigher than 96% of CVEs. EPSS by FIRST, 12 Nov 2026
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 5.5

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2000-1006
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2000-1006