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Fencer Vulns
medium 5.9

CVE-2022-2791 json

Emerson Electric's Proficy Machine Edition Version 9.00 and prior is vulnerable to CWE-434 Unrestricted Upload of File with Dangerous Type,…

published 2022-11-22 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-35032

cvss
5.9
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 8%
public exploits
0
none known

Summary

Emerson Electric's Proficy Machine Edition Version 9.00 and prior is vulnerable to CWE-434 Unrestricted Upload of File with Dangerous Type, and will upload any file written into the PLC logic folder to the connected PLC.

Vendor advisories

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

cisa ICSA-22-228-06 updated cvss 5.9

Emerson Proficy Machine Edition

  • Emerson Proficy Machine Edition <= 9.80
    affected: vendor fix, mitigation “CVE-2022-2790: See recommendations for CVE-2022-2791.” emerson.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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.19% chance of exploitation in the next 30 days, higher than 8% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 5.9 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Emerson Electric Proficy Machine Edition

Classification

Weakness
  • CWE-434 Unrestricted Upload of File with Dangerous Type

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.