CVE-2007-0039

no score yetEPSS 45%

microsoft exchange server: no CVSS score yet. EPSS 45% chance of exploitation in the next 30 days.

The Exchange Collaboration Data Objects (EXCDO) functionality in Microsoft Exchange Server 2000 SP3, 2003 SP1 and SP2, and 2007 allows remote attackers to cause a denial of service (crash) via an Internet Calendar (iCal) file containing multiple X-MICROSOFT-CDO-MODPROPS (MODPROPS) properties in which the second MODPROPS is longer than the first, which triggers a NULL pointer dereference and an unhandled exception.

EPSS: 45% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CWE: CWE-476
Published: 2007-05-08
Modified: 2026-06-16
Record from: the NVD, synced 2026-10-19

Affected

microsoft:exchange_server

References

http://lists.grok.org.uk/pipermail/full-disclosure/2007-May/063232.html
http://secunia.com/advisories/25183
http://www.determina.com/security.research/vulnerabilities/exchange-ical-modprops.html
http://www.osvdb.org/34390
http://www.securityfocus.com/archive/1/468047/100/0/threaded

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