CVE-2023-0017Network attack vector

Unauthenticated data compromise via open naming interface

Published Jan 10, 2023 · Updated Apr 9, 2025

Improper access control in SAP NetWeaver AS for Java 7.50 allows remote attackers to read and modify user data via an open interface. The BC-MID-CON-JCO component lets unauthenticated clients attach to an exposed naming and directory API and invoke services without an authorization gate. Network access to that interface is sufficient; successful use grants full user-data access and can interrupt services.

CVSS severity9.4
Critical
EPSS probability15.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Improper access control in SAP NetWeaver AS for Java 7.50 allows remote attackers to read and modify user data via an open interface. The BC-MID-CON-JCO component lets unauthenticated clients attach to an exposed naming and directory API and invoke services without an authorization gate. Network access to that interface is sufficient; successful use grants full user-data access and can interrupt services.

The record

CVE
CVE-2023-0017
Published
Jan 10, 2023
Updated
Apr 9, 2025
Vendor
SAP SE
Product
SAP NetWeaver Application Server Java
Classifications
T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 10, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=7.50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SAP SE · SAP NetWeaver Application Server Javaversion=7.50

Published CVSS scores

9.4SAP SECVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

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

Weakness, pattern, technique

T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo