Vulnerabilities and exposures for PLCnext Control Virtual PLCnext Control

Released on 2026-09-18

Attr

• CVE-2026-54371

CodeMeter

• The "CodeMeter Runtime" license server was incorrectly active and could be accessed externally.

Curl

• CVE-2026-8286
• CVE-2026-8458
• CVE-2026-8924
• CVE-2026-8926
• CVE-2026-8927
• CVE-2026-8932
• CVE-2026-9079
• CVE-2026-9080
• CVE-2026-9545
• CVE-2026-9546
• CVE-2026-9547
• CVE-2026-10536
• CVE-2026-11352
• CVE-2026-11586
• CVE-2026-11856
• CVE-2026-12064

Expat

• CVE-2026-50219
• CVE-2026-56131
• CVE-2026-56403
• CVE-2026-56404
• CVE-2026-56405
• CVE-2026-56406
• CVE-2026-56407
• CVE-2026-56408
• CVE-2026-56409
• CVE-2026-56410
• CVE-2026-56411
• CVE-2026-56412

Freetype

• CVE-2026-23865

Glibc

• CVE-2026-5450
• CVE-2026-5928

IEC 61131-3

The integrity check of a PLCnext Engineer project has been improved.

Libcap

• CVE-2026-4878

Libgcrypt

• CVE-2026-41989

Libpng

• CVE-2026-34757

Kernel

• CVE-2026-23455
• CVE-2026-31402
• CVE-2026-31414
• CVE-2026-31649
• CVE-2026-31682
• CVE-2026-43198
• CVE-2026-46266
• CVE-2026-52986
• CVE-2026-53002
• CVE-2026-53006
• CVE-2026-53228

Libssh

• CVE-2025-4877
• CVE-2026-0964
• CVE-2026-0965
• CVE-2026-0966
• CVE-2026-0967
• CVE-2026-0968

Libssh2

• CVE-2026-7598
• CVE-2026-15661
• CVE-2026-55199
• CVE-2026-55200
• CVE-2026-58050

Libusb

• CVE-2026-23679
• CVE-2026-47104

Libxml

• CVE-2026-0989
• CVE-2026-0990
• CVE-2026-0992

Ncurses

• CVE-2026-69720

Nfs-utils

• CVE-2026-12801

OpenSSH

• CVE-2026-59995
• CVE-2026-59996
• CVE-2026-59997
• CVE-2026-59998
• CVE-2026-59999
• CVE-2026-60000
• CVE-2026-60001
• CVE-2026-60002

OpenSSL

A denial-of-service (DoS) vulnerability in former OpenSSL versions allowed a remote, unauthenticated attacker to trigger excessive memory allocation by sending a specially crafted TLS handshake message of only 11 bytes (HollowByte).

Python

• CVE-2026-4519

Python pip

• CVE-2026-1703

Rauc

• CVE-2026-34155

Rsync

• CVE-2026-53783
• CVE-2026-53784
• CVE-2026-53785
• CVE-2026-53786
• CVE-2026-53788
• CVE-2026-53789
• CVE-2026-53790
• CVE-2026-53791
• CVE-2026-53792
• CVE-2026-53793
• CVE-2026-53794
• CVE-2026-53795
• CVE-2026-53796
• CVE-2026-53797
• CVE-2026-53798
• CVE-2026-53799
• CVE-2026-53800
• CVE-2026-53801
• CVE-2026-53802
• CVE-2026-53803
• CVE-2026-70452
• CVE-2026-70453
• CVE-2026-70454
• CVE-2026-70455
• CVE-2026-70456
• CVE-2026-70457
• CVE-2026-70458
• CVE-2026-70459
• CVE-2026-70460
• CVE-2026-70461
• CVE-2026-70462
• CVE-2026-70463
• CVE-2026-70464

Sudo

• CVE-2026-35535

Systemd

• CVE-2026-29111
• CVE-2026-40225

Tar

• CVE-2026-5704

U-boot

• CVE-2026-57256

Util-linux-mount

• CVE-2026-27456

Xz

• CVE-2026-34743

Zlib

• CVE-2026-27171

Released on 2026-07-10

Gnutls

• CVE-2026-42009

OpenSSL

• CVE-2026-7383 
• CVE-2026-9076
• CVE-2026-34180
• CVE-2026-34182
• CVE-2026-42766 
• CVE-2026-42767
• CVE-2026-42770
• CVE-2026-45445
• CVE-2026-45446
• CVE-2026-45447

Nginx

• CVE-2026-1642 
• CVE-2026-9256

 Released on 2026-06-01

ACF 

• CVE-2025-41670

App

PLCnext Technology Apps using containers could not access the gRPC interface because the role “app_user” is no longer a member of the “plcnext” group for “secure-by-default” devices.

Backup and Restore

• The certificates from the Identity Store were not saved within a backup file.
• Restoring a manipulated backup file led to an exception and system watchdog.
• During decryption of an encrypted backup, a WBM alert containing internal security-related information was triggered when a user entered an incorrect password.
• During backup creation it was possible to set an encryption password with the length of one character.

Curl

• CVE-2025-0167 
• CVE-2025-5025
• CVE-2025-10148 
• CVE-2025-14017 
• CVE-2025-14819 
• CVE-2025-14524 
• CVE-2025-15079
• CVE-2025-15224
• CVE-2026-1965 
• CVE-2026-3783 
• CVE-2026-3784
• CVE-2026-4873 
• CVE-2026-5545 
• CVE-2026-5773 
• CVE-2026-6253 
• CVE-2026-6276 
• CVE-2026-6429 
• CVE-2026-7168 

DPKG

• CVE-2025-6297

Expat

• CVE-2026-45186

Git

• CVE-2025-48384

Glib

• CVE-2025-3360
• CVE-2025-4373
• CVE-2025-6052
• CVE-2025-7039
• CVE-2025-13601 
• CVE-2025-14087
• CVE-2025-14512

Glibc

• CVE-2024-2961
• CVE-2025-5702
• CVE-2025-8058
• CVE-2025-15281
• CVE-2026-0861
• CVE-2026-0915
• CVE-2026-4046
• CVE-2026-4437
• CVE-2026-4438

Gnutls

• CVE-2025-6395
• CVE-2025-32988
• CVE-2025-32989
• CVE-2025-32990
• CVE-2026-3832
• CVE-2026-3833
• CVE-2026-33845
• CVE-2026-42010

GRPC

• CVE-2024-7246
• CVE-2024-11407

Kernel

• CVE-2026-31431
• CVE-2026-43037
• CVE-2026-43038
• CVE-2026-43186
• CVE-2026-43284
• CVE-2026-46300

Libxpat

• CVE-2025-59375
• CVE-2026-24515
• CVE-2026-32776
• CVE-2026-32777
• CVE-2026-32778
• CVE-2026-41080
•  

Libssh

• CVE-2025-5351
• CVE-2025-5987 
• CVE-2025-8114
• CVE-2026-3731

Libtasn

• CVE-2025-13151

Libxml

• CVE-2025-7425

Ncurses

• CVE-2025-6141

Nginx

• CVE-2025-23419 
• CVE-2025-53859

Nghttp2

• CVE-2026-27135

NTP

Via web-based management service any parameters for the NTP/chrony configuration could be written to the configuration file and applied accordingly.

Openssh

• CVE-2025-32728
• CVE-2026-35385
• CVE-2026-35386
• CVE-2026-35387
• CVE-2026-35388
• CVE-2026-35414
• CVE-2025-61984
• CVE-2025-61985
• Support of the obsolete “+ssh-rsa” algorithm has now been removed. In order to maintain compatibility with older clients, the algorithm was explicitly reactivated in previous updates, despite being communicated as removed.

Openssl

• CVE-2025-9230
• CVE-2025-9232
• CVE-2025-15467
• CVE-2025-68160
• CVE-2025-69418
• CVE-2025-69419
• CVE-2025-69420
• CVE-2025-69421
• CVE-2026-22795
• CVE-2026-22796
• CVE-2026-28387
• CVE-2026-28388
• CVE-2026-28389
• CVE-2026-28390
• CVE-2026-31789
• CVE-2026-31790

OpenVPN

• CVE-2025-13086

PROFINET

• A malformed LLDP frame could cause a crash (stack overflow) and potential code execution.
• CVE-2025-41769 Updated on 2026-08-24

Python

• CVE-2025-12084 
• CVE-2025-13836
• CVE-2025-13837

Rapidjson

• CVE-2024-39684

RSC

• CVE-2025-41770 Updated on 2026-08-24:
  A manipulated message interrupted the RSC communication to the PLCnext Engineer. In addition, the internal CPU system load increased up to 100 %.
• Calls to internal RSC services without SecurityStub were allowed if the providing component was running in another process than the RscGateway.

Rsync

• CVE-2025-10158
• CVE-2026-29518
• CVE-2026-41035
• CVE-2026-43617
• CVE-2026-43618
• CVE-2026-43619
• CVE-2026-43620
• CVE-2026-45232

RSC file service

Read/write access to app directories via the RSC service “Read/Write” was denied on “secure-by-default” devices.

System

• CVE-2025-41669
• By activating the remote gRPC server, it was possible to use every available endpoint without authentication. This includes for example reading and writing GDS variables, as well as restarting the device, and processing a factory reset.
• Missing certificates in case of project integrity in the Trust Store Code Signing led to unclear security notifications.
• Writing primitive variables using “IDataAccessService::Write” instead of “IDataAccessService::WriteSingle”, the additional information “from <oldValue> to <newValue>” was missing in the corresponding security notification.
• The AppManager did not lock the loading of an app in time to prevent the PlcManager from loading the eCLR project. This led to an impairment of cybersecurity, as the loaded code could still be executed in the event of an expired license.
• A standard user on the device was able to access any files on the device. This situation was caused by misconfigured sudo permissions associated with the “nft” binary.
• In case of user handling some notifications showed internal user-related information.

Systemd

• CVE-2026-40226

Sqlite

• CVE-2025-6965
• CVE-2025-7709 
• CVE-2025-52099

WBM

• CVE-2025-41771
• The WBM certificate management was unable to add PEM certificates which contained “CRLF” instead of “LF”.
• In LDAP/LDAPs WBM configuration, a port setting was not reset to default if the port was removed on existing configurations.
• In connection with certificate management, security notifications were not generated anymore.