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Vulnerability record · CVE-2007-0221 · published 8 May 2007

CVE-2007-0221: Microsoft exchange server integer overflow vulnerability

Microsoft · Exchange Server

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."

7.8 CVSS 2.0 High EPSS 37% · top 1.5% CWE-190 · Integer overflow
7.8CVSS 2.0 base score
37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
22References
16 Jun 2026Last modified by NVD

Description

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."

AV:N/AC:L/Au:N/C:N/I:N/A:C

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=526 PatchThird Party Advisory
http://secunia.com/advisories/25183 PatchThird Party Advisory
http://www.osvdb.org/34392 Broken Link
http://www.securityfocus.com/archive/1/468871/100/200/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/23810 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id?1018015 PatchThird Party AdvisoryVDB Entry
http://www.us-cert.gov/cas/techalerts/TA07-128A.html Third Party AdvisoryUS Government Resource
http://www.vupen.com/english/advisories/2007/1711 Permissions Required
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-026 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/33890 Third Party AdvisoryVDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2054 Third Party Advisory
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=526 PatchThird Party Advisory
http://secunia.com/advisories/25183 PatchThird Party Advisory
http://www.osvdb.org/34392 Broken Link
http://www.securityfocus.com/archive/1/468871/100/200/threaded Third Party AdvisoryVDB Entry
http://www.securityfocus.com/bid/23810 Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id?1018015 PatchThird Party AdvisoryVDB Entry
http://www.us-cert.gov/cas/techalerts/TA07-128A.html Third Party AdvisoryUS Government Resource
http://www.vupen.com/english/advisories/2007/1711 Permissions Required
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2007/ms07-026 PatchVendor Advisory
https://exchange.xforce.ibmcloud.com/vulnerabilities/33890 Third Party AdvisoryVDB Entry
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A2054 Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2007-0221), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.