VULNERABILITY INTELLIGENCE

CVE-2020-13998

CVSS score5.3 MEDIUM
EPSS probability1.42%
CISA KEVNot currently listed
Published2020-06-11
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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

Weakness classification

  • nvd@nist.gov: CWE-203
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-639

Primary references