CVE-2023-7330Known exploitationPublic exploitNetwork attack vector

Unauthenticated code execution via arbitrary PHP upload

Published Nov 24, 2025 · Updated Nov 25, 2025

Unrestricted file upload in Ruijie Networks RG-NBR Series Routers allows remote attackers to execute code through fileupload.php. The /ddi/server/fileupload.php endpoint uses attacker-controlled name and uploadDir values to save multipart content without validating its type, path, or extension. No authentication or user interaction is required; placing a PHP file under the web root grants code execution in the web service context.

CVSS severity9.3
Critical
EPSS probability0.62%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Ruijie Networks RG-NBR Series Routers allows remote attackers to execute code through fileupload.php. The /ddi/server/fileupload.php endpoint uses attacker-controlled name and uploadDir values to save multipart content without validating its type, path, or extension. No authentication or user interaction is required; placing a PHP file under the web root grants code execution in the web service context.

The record

CVE
CVE-2023-7330
Published
Nov 24, 2025
Updated
Nov 25, 2025
Vendor
Ruijie Networks
Product
RG-NBR Series Routers
Classifications
CWE-434, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 14, 2025Exploitation reportedShadowserver observed exploitation of CVE-2023-7330
  2. Nov 24, 2025CVE publishedPublication date reported by the CVE source.
  3. Nov 25, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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  1. Affected versionversion=0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Ruijie Networks · RG-NBR Series Routersversion=0

Published CVSS scores

9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Reported exploitation

Technologies

Your stack

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Your stack

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