CVE-2021-34605Public exploit

Code execution via project-file path traversal

Published May 11, 2022 · Updated Sep 17, 2024

Relative path traversal in XDPPro 3.5.1 and earlier allows local users to write arbitrary files through a crafted project file. XDPPro extracts ZIP-based .xdp entries into its installation-directory temp folder without containing traversal paths, allowing entries to escape the folder. Exploitation requires an operator to open the file or upload it from an infected Xinje PLC; writes with administrator-level program permissions can enable code execution, disclosure, or service interruption.

CVSS severity7.3
High
EPSS probability2.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Relative path traversal in XDPPro 3.5.1 and earlier allows local users to write arbitrary files through a crafted project file. XDPPro extracts ZIP-based .xdp entries into its installation-directory temp folder without containing traversal paths, allowing entries to escape the folder. Exploitation requires an operator to open the file or upload it from an infected Xinje PLC; writes with administrator-level program permissions can enable code execution, disclosure, or service interruption.

The record

CVE
CVE-2021-34605
Published
May 11, 2022
Updated
Sep 17, 2024
Vendor
Wuxi Xinje Electric Co., Ltd.
Product
XDPPro
Classifications
CWE-23, T1204.002
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 11, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 17, 2024Record 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=unspecified <=v3.5.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Wuxi Xinje Electric Co., Ltd. · XDPProversion=unspecified <=v3.5.1

Published CVSS scores

7.3CERT VDECVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
7.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
6.0NIST NVDAV:N/AC:M/Au:S/C:P/I:P/A:P

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 exploitPublished

Weakness, pattern, technique

CWE-23Relative Path Traversal
T1204.002User Execution: Malicious File

Public exploit references

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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