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Fencer Vulns
high 7.5

CVE-2022-31805 json

Insecure transmission of credentials

published 2022-06-24 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-53194

cvss
7.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 64%
public exploits
0
none known

Summary

In the CODESYS Development System multiple components in multiple versions transmit the passwords for the communication between clients and servers unprotected.

Patch / fix

  • CODESYS CODESYS Development System V2.3.9.69, V3.5.18.30
  • CODESYS CODESYS Gateway Client V2.3.9.38
  • CODESYS CODESYS Gateway Server V2.3.9.38
  • CODESYS CODESYS Web server V1.1.9.23
  • CODESYS CODESYS SP Realtime NT V2.3.7.30
  • CODESYS CODESYS PLCWinNT V2.4.7.57
  • CODESYS CODESYS Runtime Toolkit 32 bit full V2.4.7.57
  • CODESYS CODESYS Edge Gateway for Windows V3.5.18.30
  • CODESYS CODESYS HMI (SL) V3.5.18.30
  • CODESYS CODESYS OPC DA Server SL V3.5.18.30
  • CODESYS CODESYS PLCHandler V3.5.18.30
  • CODESYS CODESYS Gateway V3.5.18.30

Vendor advisories

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

cisa ICSA-26-076-01 updated cvss 7.5

CODESYS in Festo Automation Suite

  • CODESYS Development System 3.0 Festo Automation Suite 2.8.0.137, Festo Automation Suite < 2.8.0.138 CODESYS Development System 3.5.16.10 Festo Automation Suite 2.8.0.137, Festo Automation Suite < 2.8.0.138
    affected: mitigation
  • Festo Automation Suite 2.8.0.138 CODESYS Development System 3.5.21.20
    fixed

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

Exploit prediction

1.05% chance of exploitation in the next 30 days, higher than 64% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • CODESYS CODESYS Development System
  • CODESYS CODESYS Gateway Client
  • CODESYS CODESYS Gateway Server
  • CODESYS CODESYS Web server
  • CODESYS CODESYS SP Realtime NT
  • CODESYS CODESYS PLCWinNT
  • CODESYS CODESYS Runtime Toolkit 32 bit full
  • CODESYS CODESYS Edge Gateway for Windows
  • CODESYS CODESYS HMI (SL)
  • CODESYS CODESYS OPC DA Server SL
  • CODESYS CODESYS PLCHandler
  • CODESYS CODESYS Gateway

Classification

Weakness
  • CWE-523 Unprotected Transport of Credentials

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.