CVE-2007-2850

CRITICAL

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 pol...

Affects 2 products across 1 vendor.

CVSS 2.010.0
EPSS2.8%
Percentile86th
PatchUnknown
CVSS Vector — Plain English Remotely exploitable over the network, low complexity.
◆ AI Analysis — automated analysis, not human-reviewed

This vulnerability was disclosed in 2007. A critical vulnerability affects Citrix systems (CVE-2007-2850). No public exploit code is currently available. Isolate affected systems if patching is not feasible.

BSID: BS-2007-GLOBAL-335182-C • Model: rule-based-v1 • Confidence: MEDIUM

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Frequently Asked Questions
What is CVE-2007-2850?
This vulnerability was disclosed in 2007. A critical vulnerability affects Citrix systems (CVE-2007-2850). No public exploit code is currently available. Isolate affected systems if patching is not feasible.
What is the CVSS score for CVE-2007-2850?
CVE-2007-2850 has CVSS 10.0 (Critical). Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C. EPSS: 2.8%.
Is CVE-2007-2850 actively exploited?
No confirmed active exploitation of CVE-2007-2850 as of 2026-09-25.
How do I remediate CVE-2007-2850?
Priority: MEDIUM. PSIRT: [email protected]
What systems are affected by CVE-2007-2850?
CVE-2007-2850 affects Citrix Metaframe, Access Essentials.
Vulnerability Details
CVE IDCVE-2007-2850
BSIDBS-2007-GLOBAL-335182-C BreachSpider Global ID
CVSS VectorAV:N/AC:L/Au:N/C:C/I:C/A:C
Published2007-05-24
Last Modified2026-06-16
ICS Relevance0%
Domains
NETWORK-INFRA
SourceNVD
Official Description

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.

Source: NIST NVD / MITRE CVE Database

Attack Vector Analysis — CITED Relevance

Vulnerability details: 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. CVSS vector: AV:N/AC:L/Au:N/C:C/I:C/A:C.

Exploitation Likelihood: LOW

Affected Products
VendorProductAffected Versions
Citrix Metaframe 3.0 4.0
Citrix Access Essentials 1.0 1.5
Remediation

No official vendor advisory link on record. See the CVE record →

Vendor PSIRT: [email protected]
Threat Intelligence
● Threat Intelligence Validated: October 2026 | Threat Age: 7084 Days
CISA known-exploitedNot in KEV catalog
Public ExploitNot confirmed
PoC CodeNot confirmed
AI Enrichment Record — provenance & audit hash
Modelrule-based-v1
ConfidenceMEDIUM
Enriched At2026-05-24
SHA-512 Audit Hash12e773cdb96a2ad8f8815a747b972f1bda0633a27b3afd39b10499d85ea801fea17aeb4d75775041ca9217eafd79c12fff4a7016c4708f317dde6b5e8dce2c0e
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