CVE-2007-0213
CriticalPublic exploitMicrosoft Exchange Server 2000 SP3, 2003 SP1 and SP2, and 2007 does not properly decode certain MIME encoded e-mails, which allows remote attackers to execute arbitrary code via a crafted base64-encoded MIME e-mail message.
Published May 8, 2007 · Updated Apr 22, 2026
Key Facts
Patch immediately- CVE-2007-0213 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Exchange Server (Microsoft).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 66% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
66%
Higher than 99.2% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2007-0213 brief as a PDF
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Description
Microsoft Exchange Server 2000 SP3, 2003 SP1 and SP2, and 2007 does not properly decode certain MIME encoded e-mails, which allows remote attackers to execute arbitrary code via a crafted base64-encoded MIME e-mail message.
Affected Products
4 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Exchange ServerMicrosoft | 2000-sp3, 2003-sp1, 2003-sp2, 2007 | n/a |
Timeline
Publicly disclosed
May 8, 2007
Last updated
Apr 22, 2026
Weakness Type
- CWE-20 Improper Input Validation
References
- advisoryhttp://packetstormsecurity.com/files/153533/Microsoft-Exchange-2003-base64-MIME-Remote-Code-Execution.html
- advisory25183
- advisoryexchange-mime-base64-code-execution(33889)
- advisoryoval:org.mitre.oval:def:1890
- advisoryVU#343145
FAQ
Common Questions.
Microsoft Exchange Server 2000 SP3, 2003 SP1 and SP2, and 2007 does not properly decode certain MIME encoded e-mails, which allows remote attackers to execute arbitrary code via a crafted base64-encoded MIME e-mail message.
Affected: Exchange Server (Microsoft) versions 2000-sp3, 2003-sp1, 2003-sp2, 2007. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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