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Smart Visu Server Firmware CVE-2026-26234

HIGH
Improper Neutralization of HTTP Headers for Scripting Syntax (CWE-644)
2026-02-12 disclosure@vulncheck.com
Code Injection Smart Visu Server Firmware
8.8
CVSS 3.1 · NVD
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Severity by source

NVD PRIMARY
8.8 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
Analysis Generated
Mar 12, 2026 - 22:02 vuln.today
PoC Detected
Feb 20, 2026 - 15:14 vuln.today
Public exploit code
CVE Published
Feb 12, 2026 - 04:15 nvd
HIGH 8.8

DescriptionCVE.org

JUNG Smart Visu Server 1.1.1050 contains a request header manipulation vulnerability that allows unauthenticated attackers to override request URLs by injecting arbitrary values in the X-Forwarded-Host header. Attackers can manipulate proxied requests to generate tainted responses, enabling cache poisoning, potential phishing, and redirecting users to malicious domains.

AnalysisAI

Smart Visu Server Firmware contains a vulnerability that allows attackers to override request URLs by injecting arbitrary values in the X-Forwarded-Host head (CVSS 8.8).

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Craft HTTP request with malicious X-Forwarded-Host header
Delivery
Send to JUNG Smart Visu Server
Exploit
Server processes header as trusted proxy origin
Execution
Poison cache or generate phishing response
Impact
User receives tainted content from attacker domain
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Vulnerability AssessmentAI

Exploitation JUNG Smart Visu Server version 1.1.1050 with default configuration trusting X-Forwarded-Host headers from any network source. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CVSS 8.8 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker without authentication could exploit this vulnerability to override request URLs by injecting arbitrary values in the X-Forwarded-Host head.
Remediation Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.
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Recommended ActionAI

Within 24 hours: Inventory all Smart Visu Server instances and their firmware versions; isolate or restrict network access to affected systems if possible. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-26234 vulnerability details – vuln.today
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