CVE-2023-23857Network attack vector

Unauthenticated data access and disruption via naming API

Published Mar 14, 2023 · Updated Feb 27, 2025

Improper authentication in SAP NetWeaver AS for Java 7.50 allows remote attackers to read and modify sensitive data or interrupt service. The open interface accepts unauthenticated attachment and exposes a naming and directory API whose services perform unauthorized operations. Network access to that interface is sufficient, and successful use can affect users and services across systems or make system elements unresponsive.

CVSS severity9.9
Critical
EPSS probability0.54%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in SAP NetWeaver AS for Java 7.50 allows remote attackers to read and modify sensitive data or interrupt service. The open interface accepts unauthenticated attachment and exposes a naming and directory API whose services perform unauthorized operations. Network access to that interface is sufficient, and successful use can affect users and services across systems or make system elements unresponsive.

The record

CVE
CVE-2023-23857
Published
Mar 14, 2023
Updated
Feb 27, 2025
Vendor
SAP SE
Product
SAP NetWeaver Application Server Java
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 27, 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?

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

9.9SAP SECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:H
8.6NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H

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 exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-287Improper Authentication
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

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Your stack

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