CVE-2026-57471

Arbitrary file read via XML-RPC path traversal

Published Aug 14, 2026 · Updated Aug 14, 2026

Path traversal in KUNBUS RevPiPyLoad 0.11.0 and earlier allows local users to read arbitrary files through crafted XML-RPC requests. The XML-RPC file-management handler resolves an attacker-controlled path without confining access to the managed PLC directory. The server is disabled by default; when enabled, local users can obtain configuration and credential material readable by the daemon.

CVSS severity6.8
Medium
EPSS probability0.12%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in KUNBUS RevPiPyLoad 0.11.0 and earlier allows local users to read arbitrary files through crafted XML-RPC requests. The XML-RPC file-management handler resolves an attacker-controlled path without confining access to the managed PLC directory. The server is disabled by default; when enabled, local users can obtain configuration and credential material readable by the daemon.

The record

CVE
CVE-2026-57471
Published
Aug 14, 2026
Updated
Aug 14, 2026
Vendor
KUNBUS
Product
RevPiPyLoad
Classifications
CWE-22, CAPEC-126, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

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

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

  1. Affected versionversion=0 <=0.11.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

KUNBUS · RevPiPyLoadversion=0 <=0.11.0

Published CVSS scores

6.8Nozomi Networks Inc.CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA: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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC-126Path Traversal
T1005Data from Local System

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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