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Fencer Vulns
critical 9.8

CVE-2023-0755 in the critical feed json

The affected products are vulnerable to an improper validation of array index, which could allow an attacker to crash the server and remote…

published 2023-02-23 3 y ago modified 2026-06-17 4 mo ago also EUVD-2023-12773

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
11.8%
EPSS 11.8% chance of exploitation in 30 days, percentile 96%
public exploits
0
none known

Summary

The affected products are vulnerable to an improper validation of array index, which could allow an attacker to crash the server and remotely execute arbitrary code.

Vendor advisories

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

cisa ICSA-23-054-01 updated cvss 9.8

PTC ThingWorx Edge

  • PTC .NET-SDK <= 5.8.4.971 PTC GE Digital Industrial Gateway Server <= 7.612 PTC Kepware KEPServerEX <= 6.12 PTC Rockwell Automation KEPServer Enterprise <= 6.12 PTC ThingWorx Edge C-SDK <= 2.2.12.1052 PTC ThingWorx Edge MicroServer (EMS) <= 5.4.10.0
    +3 more products
    PTC ThingWorx Industrial Connectivity PTC ThingWorx Kepware Edge <= 1.5 PTC ThingWorx Kepware Server (formerly ThingWorx Industrial Connectivity) <= 6.12
    affected: vendor fix, mitigation “ThingWorx Edge C-SDK: 3.0.0 or later.” ptc.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
yes
Technical impact
total
Assessed
21 mo ago

Exploit prediction

11.78% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • PTC ThingWorx Edge C-SDK
  • Microsoft .NET-SDK
  • PTC ThingWorx Edge MicroServer (EMS)
  • PTC Kepware KEPServerEX
  • PTC ThingWorx Kepware Server
  • PTC ThingWorx Industrial Connectivity
  • PTC ThingWorx Kepware Edge
  • Rockwell Automation KEPServer Enterprise
  • General Electric Digital Industrial Gateway Server

Classification

Weakness
  • CWE-129 Improper Validation of Array Index

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.