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Servers and applications

CVE-2007-0221

Integer overflow in the IMAP (IMAP4) support in Microsoft Exchange Server 2000 SP3 allows remote attackers to cause a denial of service (service hang) via crafted literals in an IMAP command, aka the "IMAP Literal Processing Vulnerability."

Severity
High 7.8
Published
8 May 2007
Last changed
16 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
37% in the next 30 daysHigher than 98% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
Integer overflow (CWE-190)
Attack
Over the network · No login needed
Attacker can
Take it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C
Sources
NVD

Affected software

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

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2007-0221
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2007-0221