Skip to content
Fencer Vulns
medium 6.5

CVE-2019-13542 json

3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server, all versions 3.5.11.0 to 3.5.15.0, allows an attacker to send crafted requests f…

published 2019-09-17 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-4997

cvss
6.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server, all versions 3.5.11.0 to 3.5.15.0, allows an attacker to send crafted requests from a trusted OPC UA client that cause a NULL pointer dereference, which may trigger a denial-of-service condition.

Patch / fix

  • codesys control_for_beaglebone 3.5.15.0
  • codesys control_for_empc-a/imx6 3.5.15.0
  • codesys control_for_iot2000 3.5.15.0
  • codesys control_for_pfc100 3.5.15.0
  • codesys control_for_pfc200 3.5.15.0
  • codesys control_for_raspberry_pi 3.5.15.0
  • codesys control_rte 3.5.15.0
  • codesys control_win 3.5.15.0
  • codesys linux 3.5.15.0
  • codesys runtime_system_toolkit 3.5.15.0

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 6.5

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

cisa ICSA-25-273-04 updated cvss 6.5

Festo Controller CECC-S,-LK,-D Family Firmware (Update A)

  • Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-D (All versions) Festo Firmware (R05 (17.06.2016) = 2.3.8.0) installed on Festo Hardware Controller CECC-S (All versions) Festo Firmware (R06 (11.10.2016) = 2.3.8.1) installed on Festo Hardware Controller CECC-LK (All versions) Festo Firmware (R06 (11.10.2016) = 2.3.8.1) installed on Festo Hardware Controller CECC-S (All versions)
    affected: mitigation “Festo has identified the following specific workarounds and mitigations users can apply to reduce risk:” certvde.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 ICSA-19-255-04 updated cvss 6.5

3S-Smart Software Solutions GmbH CODESYS Control V3 OPC UA Server

  • 3S-Smart Software Solutions GmbH CODESYS Control for BeagleBone >= 3.5.11.0, <= 3.5.15.0 3S-Smart Software Solutions GmbH CODESYS Control for emPC-A/iMX6 >= 3.5.11.0, <= 3.5.15.0 3S-Smart Software Solutions GmbH CODESYS Control for IOT2000 >= 3.5.11.0, <= 3.5.15.0 3S-Smart Software Solutions GmbH CODESYS Control for Linux >= 3.5.11.0, <= 3.5.15.0 3S-Smart Software Solutions GmbH CODESYS Control for PFC100 >= 3.5.11.0, <= 3.5.15.0 3S-Smart Software Solutions GmbH CODESYS Control for PFC200 >= 3.5.11.0, <= 3.5.15.0
    +5 more products
    3S-Smart Software Solutions GmbH CODESYS Control for Raspberry Pi >= 3.5.11.0, <= 3.5.15.0 3S-Smart Software Solutions GmbH CODESYS Control RTE V3 >= 3.5.11.0, <= 3.5.15.0 3S-Smart Software Solutions GmbH CODESYS Control RTE V3 (for Beckhoff CX) >= 3.5.11.0, <= 3.5.15.0 3S-Smart Software Solutions GmbH CODESYS Control V3 Runtime System Toolkit >= 3.5.11.0, <= 3.5.15.0 3S-Smart Software Solutions GmbH CODESYS Control Win V3 (also part of the CODESYS Development System setup) >= 3.5.11.0, <= 3.5.15.0
    affected: mitigation “3S-Smart Software Solutions GmbH has released Version 3.5.15.0 to resolve this vulnerability for all affected CODESYS products.” codesys.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

1.50% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD 2.0 4.0 AV:N/AC:L/Au:S/C:N/I:N/A:P

Affected products

  • GmbH 3S-Smart Software Solutions GmbH CODESYS V3 OPC UA Server

Classification

Weakness

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.