CVE-2009-2453

Name: CVE-2009-2453
Creator: NVD / NIST
Published: 2009-07-14T14:30:00.547+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.43%

Last modified Jun 16, 2026

CVE-2009-2453 is a vulnerability of currently unknown severity. 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.. EPSS estimates a 1.43% chance of exploitation in the next 30 days.

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.

Metrics

EPSS Probability

1.43%

69.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-264

Affected Software

Vendor	Product	Versions	Update
Citrix	Presentation Server	4.5	—
Citrix	Xenapp	4.5	Fp3

References

http://osvdb.org/53900
http://secunia.com/advisories/34865Vendor Advisory
http://support.citrix.com/article/CTX118792Patch, Vendor Advisory
http://www.securityfocus.com/bid/34691Patch
http://www.securitytracker.com/id?1022114Patch
http://www.vupen.com/english/advisories/2009/1154Patch, Vendor Advisory
http://osvdb.org/53900
http://secunia.com/advisories/34865Vendor Advisory
http://support.citrix.com/article/CTX118792Patch, Vendor Advisory
http://www.securityfocus.com/bid/34691Patch
http://www.securitytracker.com/id?1022114Patch
http://www.vupen.com/english/advisories/2009/1154Patch, Vendor Advisory

Timeline

Published: Jul 14, 2009
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2009-2453?

How severe is CVE-2009-2453?

Severity scoring for CVE-2009-2453 is pending analysis. The EPSS model estimates a 1.43% probability of exploitation in the next 30 days.

How do I fix CVE-2009-2453?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2009-2453?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST