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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…
- 7.8HighCVSS base score
- 37.2%Exploitation in 30 daysEPSS · top 1.5% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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."
Timeline
ID reserved
By microsoft
- 4 months later
· 4 months later
Published
- 17 years later
· 17 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C |
- EPSS (exploitation in 30 days)
- 37.2% · top 1.5% of all CVEs (9 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
n/a
- affected n/a
References
11
- HPSBST02214 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- 1018015 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- MS07-026 (opens in a new tab)vendor-advisoryx_refsource_MSx_transferred
- exchange-imap-command-dos(33890) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- 23810 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 25183 (opens in a new tab)third-party-advisoryx_refsource_SECUNIAx_transferred
- TA07-128A (opens in a new tab)third-party-advisoryx_refsource_CERTx_transferred
- oval:org.mitre.oval:def:2054 (opens in a new tab)vdb-entrysignaturex_refsource_OVALx_transferred
- ADV-2007-1711 (opens in a new tab)vdb-entryx_refsource_VUPENx_transferred
- 20070508 Microsoft Exchange Server 2000 IMAP Literal Processing DoS Vulnerability (opens in a new tab)third-party-advisoryx_refsource_IDEFENSEx_transferred
- 34392 (opens in a new tab)vdb-entryx_refsource_OSVDBx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2007-0223 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2007-0221)Record last updated .