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Fencer Vulns
high 7.3

CVE-2021-34605 json

Xinje XD/E Series PLC Program Tool Zip Slip

published 2022-05-11 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-21255

cvss
7.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

A zip slip vulnerability in XINJE XD/E Series PLC Program Tool up to version v3.5.1 can provide an attacker with arbitrary file write privilege when opening a specially-crafted project file. This vulnerability can be triggered by manually opening an infected project file, or by initiating an upload program request from an infected Xinje PLC. This can result in remote code execution, information disclosure and denial of service of the system running the XINJE XD/E Series PLC Program Tool.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-23-024-01 updated cvss 7.3

XINJE XD

  • XINJE XD Programing Tool <= 3.5.1
    affected: mitigation “Xinje has not responded to requests to provide mitigations for these vulnerabilities. Users of the affected product are encouraged to contact Xinje Technical Support.” en.xinje.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

2.62% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • claroty.com https://claroty.com/2022/05/11/blog-research-from-project-file-to-code-execution-exploiting-vulnerabilities-in-xinje-plc-program-tool/ referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD 2.0 6.0 AV:N/AC:M/Au:S/C:P/I:P/A:P

Affected products

  • XINJE XD/E Series PLC Program Tool

Classification

Weakness
  • CWE-23 Relative Path Traversal

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.