The Session Reliability Service (XTE) in Citrix MetaFrame Presentation Server 3.0…
Priority MEDIUM 48Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Complete · Complete · Complete
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA.
Summary
The Session Reliability Service (XTE) in Citrix MetaFrame Presentation Server 3.0, Presentation Server 4.0, and Access Essentials 1.0 and 1.5, allows remote attackers to bypass network security policies and connect to arbitrary TCP ports via a modified address:port string.
Why it matters now
EPSS 0.02819 86th 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 · 8
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:citrix:access_essentials:1.0:*:*:*:*:*:*:* | 1.0 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:access_essentials:1.5:*:*:*:*:*:*:* | 1.5 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:metaframe:3.0:*:microsoft_windows_2000:*:*:*:*:* | 3.0 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:metaframe:3.0:*:microsoft_windows_2003:*:*:*:*:* | 3.0 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:metaframe:3.0:*:x64_edition:*:*:*:*:* | 3.0 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:metaframe:4.0:*:microsoft_windows_2000:*:*:*:*:* | 4.0 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:metaframe:4.0:*:microsoft_windows_2003:*:*:*:*:* | 4.0 | Vulnerable | Citrix |
| cpe:2.3:a:citrix:metaframe:4.0:*:x64_edition:*:*:*:*:* | 4.0 | Vulnerable | Citrix |
- cpe:2.3:a:citrix:access_essentials:1.0:*:*:*:*:*:*:* Versions 1.0 Vulnerable ·Citrix
- cpe:2.3:a:citrix:access_essentials:1.5:*:*:*:*:*:*:* Versions 1.5 Vulnerable ·Citrix
- cpe:2.3:a:citrix:metaframe:3.0:*:microsoft_windows_2000:*:*:*:*:* Versions 3.0 Vulnerable ·Citrix
- cpe:2.3:a:citrix:metaframe:3.0:*:microsoft_windows_2003:*:*:*:*:* Versions 3.0 Vulnerable ·Citrix
- cpe:2.3:a:citrix:metaframe:3.0:*:x64_edition:*:*:*:*:* Versions 3.0 Vulnerable ·Citrix
- cpe:2.3:a:citrix:metaframe:4.0:*:microsoft_windows_2000:*:*:*:*:* Versions 4.0 Vulnerable ·Citrix
- cpe:2.3:a:citrix:metaframe:4.0:*:microsoft_windows_2003:*:*:*:*:* Versions 4.0 Vulnerable ·Citrix
- cpe:2.3:a:citrix:metaframe:4.0:*:x64_edition:*:*:*:*:* Versions 4.0 Vulnerable ·Citrix
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2007-2850
- 2026-10-03 Alias added: GHSA-955q-2rmr-5vhw
References
More Citrix Access Essentials vulnerabilities
- TI-2008-00331 Buffer overflow in the Independent Management Architecture (IMA) service in Citrix… CVSS 2.0HIGH 10.0
- TI-2008-02206 Unspecified vulnerability in Citrix Presentation Server 4.5 and earlier, Citrix Access… 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
Sources
- CVE-2007-2850 · CVE Program
- CVE-2007-2850 · NVD
- FIRST EPSS
- GHSA-955q-2rmr-5vhw · 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