Citrix XenApp (formerly Presentation Server) 4.5 Hotfix Rollup Pack 3 does not apply an…
Priority LOW 36CWE-264Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Partial · Partial · Partial
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-264.
Summary
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.
Why it matters now
EPSS 0.0143 73rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 5
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:citrix:presentation_server:4.5:-:se:*:*:*:*:* | 4.5 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:presentation_server:4.5:-:windows_server_2003:*:*:*:*:* | 4.5 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:presentation_server:4.5:-:windows_server_2003_x64:*:*:*:*:* | 4.5 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:presentation_server:4.5:fp1:*:*:*:*:*:* | 4.5 fp1 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:xenapp:4.5:fp3:*:*:*:*:*:* | 4.5 fp3 | Vulnerable | Citrix |
- cpe:2.3:a:citrix:presentation_server:4.5:-:se:*:*:*:*:* Versions 4.5 Vulnerable ·Citrix
- cpe:2.3:a:citrix:presentation_server:4.5:-:windows_server_2003:*:*:*:*:* Versions 4.5 Vulnerable ·Citrix
- cpe:2.3:a:citrix:presentation_server:4.5:-:windows_server_2003_x64:*:*:*:*:* Versions 4.5 Vulnerable ·Citrix
- cpe:2.3:a:citrix:presentation_server:4.5:fp1:*:*:*:*:*:* Versions 4.5 fp1 Vulnerable ·Citrix
- cpe:2.3:a:citrix:xenapp:4.5:fp3:*:*:*:*:*:* Versions 4.5 fp3 Vulnerable ·Citrix
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2009-2453
- 2026-10-03 Alias added: GHSA-w4g4-v88p-5wq3
References
More Citrix Presentation Server vulnerabilities
- TI-2008-00331 Buffer overflow in the Independent Management Architecture (IMA) service in Citrix… CVSS 2.0HIGH 10.0
- TI-2006-03666 Citrix MetaFrame up to XP 1.0 Feature 1, except when running on Windows Server 2003… CVSS 2.0MEDIUM 6.5
- TI-2008-04459 Unspecified vulnerability in Citrix XenApp (formerly Presentation Server) 4.5 Feature… CVSS 2.0MEDIUM 6.8
- TI-2008-02205 Unspecified vulnerability in SecureICA and ICA Basic encryption of Citrix Presentation… CVSS 2.0MEDIUM 5.0
- TI-2002-02338 Cross-site request forgery (CSRF) vulnerability in Citrix Presentation Server 4.0 and… CVSS 2.0MEDIUM 4.3
- TI-2008-04858 The installation process for Citrix Presentation Server 4.5 and Desktop Server 1.0, when… CVSS 2.0LOW 1.9
Sources
- CVE-2009-2453 · CVE Program
- CVE-2009-2453 · NVD
- FIRST EPSS
- GHSA-w4g4-v88p-5wq3 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences