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.
CVE-2007-2850
NONECVSS 0.0
0.0
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
- No confirmed exploitation signals yet
CISA-KEV: Not listedEPSS: 3%CVSS: —Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- —
- EG Score
- 0.0(none)
- EPSS
- 84.9%
- KEV
- Not listed
Published
May 24, 2007
Last Modified
April 23, 2026
References (12)
- cve@mitrehttp://fortconsult.net/files/fortconsult.dk/citrix_advisory.pdf
- cve@mitrehttp://secunia.com/advisories/25371
- cve@mitrehttp://support.citrix.com/article/CTX112964
- cve@mitrehttp://www.securitytracker.com/id?1018098
- cve@mitrehttp://www.vupen.com/english/advisories/2007/1918
- cve@mitrehttps://exchange.xforce.ibmcloud.com/vulnerabilities/34448
- af854a3a-2127-422b-91ae-364da2661108http://fortconsult.net/files/fortconsult.dk/citrix_advisory.pdf
- af854a3a-2127-422b-91ae-364da2661108http://secunia.com/advisories/25371
- af854a3a-2127-422b-91ae-364da2661108http://support.citrix.com/article/CTX112964
- af854a3a-2127-422b-91ae-364da2661108http://www.securitytracker.com/id?1018098
- af854a3a-2127-422b-91ae-364da2661108http://www.vupen.com/english/advisories/2007/1918
- af854a3a-2127-422b-91ae-364da2661108https://exchange.xforce.ibmcloud.com/vulnerabilities/34448
Data Freshness Timeline
(refreshed 3× in last 7d / 37× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Frequently asked(4)
What is CVE-2007-2850?
CVE-2007-2850 is a none vulnerability published on May 24, 2007. 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.
When was CVE-2007-2850 disclosed?
CVE-2007-2850 was first published in the National Vulnerability Database on May 24, 2007, with the most recent update on April 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2007-2850 actively exploited?
CVE-2007-2850 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
How do I remediate CVE-2007-2850?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2007-2850, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2007-2850
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