Description
Citrix XenApp 6.5, when 2FA is enabled, allows a remote unauthenticated attacker to ascertain whether a user exists on the server, because the 2FA error page only occurs after a valid username is entered. NOTE: This vulnerability only affects products that are no longer supported by the maintainer
References (1)
Core 1
Core References
Third Party Advisory x_refsource_misc
https://gist.github.com/kampji/11e259d68ad98a6f0f898132f1961a96
Scores
CVSS v3
5.3
EPSS
0.0164
EPSS Percentile
82.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-639
CWE-203
Status
published
Products (1)
citrix/xenapp
6.5.0.0
Published
Jun 11, 2020
Tracked Since
Feb 18, 2026