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Fencer Vulns
critical 9.1

CVE-2022-2848 json

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kepware KEPServerEX 6.11.718.0.

published 2023-03-29 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-35082

cvss
9.1
version 3.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
3.4%
EPSS 3.4% chance of exploitation in 30 days, percentile 88%
public exploits
0
none known

Summary

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Kepware KEPServerEX 6.11.718.0. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of text encoding conversions. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. Was ZDI-CAN-16486.

Patch / fix

  • ge industrial_gateway_server 7.612
  • ptc kepware_kepserverex 6.12
  • ptc opc-aggregator 6.12
  • ptc thingworx_kepware_edge 1.4
  • ptc thingworx_kepware_server 6.12
  • rockwellautomation kepserver_enterprise 6.12
  • softwaretoolbox top_server 6.12

Vendor advisories

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

cisa ICSA-22-242-10 updated cvss 9.1

PTC Kepware KEPServerEX (Update A)

  • PTC GE Digital Industrial Gateway Server < 7.612 PTC Kepware KEPServerEX < 6.12 PTC OPC-Aggregator < 6.12 PTC Rockwell Automation KEPServer Enterprise < 6.12 PTC Software Toolbox TOP Server < 6.12 PTC ThingWorkx Industrial Connectivity
    +2 more products
    PTC ThingWorkx Kepware Edge <= 1.4 PTC ThingWorkx Kepware Server < 6.12
    affected: mitigation “Kepware KEPServerEX: should upgrade to v6.12 or later” my.kepware.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
partial
Assessed
20 mo ago

Exploit prediction

3.37% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.0 9.1 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
NVD 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Affected products

  • Kepware KEPServerEX

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.