CVE-2009-2453

critical

Description

Citrix XenApp (formerly Presentation Server) 4.5 Hotfix Rollup Pack 3 does not apply an access policy when it is defined with the Access Gateway Advanced Edition filters, which allows attackers to bypass intended access restrictions via unknown vectors.

References

http://www.vupen.com/english/advisories/2009/1154

http://www.securitytracker.com/id?1022114

http://www.securityfocus.com/bid/34691

http://support.citrix.com/article/CTX118792

http://secunia.com/advisories/34865

http://osvdb.org/53900

Details

Source: Mitre, NVD

Published: 2009-07-14

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.1

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Severity: Critical

EPSS

EPSS: 0.00727