Description
Outlook Web Access (OWA) in Microsoft Exchange 5.5, SP4 and earlier, allows remote attackers to identify valid user email addresses by directly accessing a back-end function that processes the global address list (GAL).
References (4)
Core 4
Core References
Vendor Advisory vendor-advisory
x_refsource_ms
https://docs.microsoft.com/en-us/security-updates/securitybulletins/2001/ms01-047
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/3301
Patch, Vendor Advisory vendor-advisory
x_refsource_mskb
http://support.microsoft.com/support/kb/articles/Q307/1/95.ASP
Third Party Advisory, VDB Entry vdb-entry
x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/7089
Scores
EPSS
0.2199
EPSS Percentile
97.4%
Details
Status
published
Products (1)
microsoft/exchange_server
< 5.5
Published
Oct 30, 2001
Tracked Since
Feb 18, 2026