CVE-2023-29377Network attack vector

Path restriction bypass via FileType rename validation

Published Sep 14, 2026 · Updated Sep 14, 2026

Path restriction bypass in Softing OPC UA C++ SDK and Secure Integration Server allows remote attackers to reassign file and directory paths. FileDirectory FileType rename handling uses a user-supplied path in file operations without properly validating namespace separation or object path-assignment limits. No prior privileges are required; arbitrary local-file reads or writes and root-context code execution require chaining with a separate relative path traversal flaw.

CVSS severity7.7
High
EPSS probability0.48%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path restriction bypass in Softing OPC UA C++ SDK and Secure Integration Server allows remote attackers to reassign file and directory paths. FileDirectory FileType rename handling uses a user-supplied path in file operations without properly validating namespace separation or object path-assignment limits. No prior privileges are required; arbitrary local-file reads or writes and root-context code execution require chaining with a separate relative path traversal flaw.

The record

CVE
CVE-2023-29377
Published
Sep 14, 2026
Updated
Sep 14, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 14, 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

7.7Softing Industrial Automation GmbHCVSS:3.1/AV:N/AC:H/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.

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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-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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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