CVE-2023-31403

Installation compromise via unauthenticated SMB share writes

Published Nov 14, 2023 · Updated Jun 11, 2025

Incorrect authorization in SAP Business One 10.0 allows remote attackers on the local network to read and write installation files. The installation creates an SMB share for client setup files without proper authentication and authorization checks, allowing untrusted users to modify files later executed or consumed by the installer. An attacker must reach SMB on the same or adjacent network; altered files can expose or corrupt installation data and disrupt availability.

CVSS severity9.6
Critical
EPSS probability0.44%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect authorization in SAP Business One 10.0 allows remote attackers on the local network to read and write installation files. The installation creates an SMB share for client setup files without proper authentication and authorization checks, allowing untrusted users to modify files later executed or consumed by the installer. An attacker must reach SMB on the same or adjacent network; altered files can expose or corrupt installation data and disrupt availability.

The record

CVE
CVE-2023-31403
Published
Nov 14, 2023
Updated
Jun 11, 2025
Vendor
SAP SE
Product
SAP Business One
Classifications
CWE-863, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 14, 2023CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 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=10.0

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

SAP SE · SAP Business Oneversion=10.0

Published CVSS scores

8.0NIST NVDCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.6SAP SECVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
T1210Exploitation of Remote Services

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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