CVE-2023-30243Network attack vector

Sensitive data disclosure via TunnelId SQL injection

Published May 5, 2023 · Updated Jul 9, 2026

SQL injection in Beijing Netcon NS-ASG Application Security Gateway 6.3 allows remote attackers to read sensitive data via TunnelId. Public records identify TunnelId as the injection vector but do not disclose the endpoint, query construction, or missing validation that admits SQL syntax. Network access without authentication is sufficient; the documented consequence is sensitive-data disclosure, with no reported write or service-interruption impact.

CVSS severity7.5
High
EPSS probability0.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

SQL injection in Beijing Netcon NS-ASG Application Security Gateway 6.3 allows remote attackers to read sensitive data via TunnelId. Public records identify TunnelId as the injection vector but do not disclose the endpoint, query construction, or missing validation that admits SQL syntax. Network access without authentication is sufficient; the documented consequence is sensitive-data disclosure, with no reported write or service-interruption impact.

The record

CVE
CVE-2023-30243
Published
May 5, 2023
Updated
Jul 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 9, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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