Impact of Linux Kernel vulnerabilities on B&R products

Sicherheitsmeldung mit Schweregrad hoch. Sie wird laut CISA-KEV aktiv ausgenutzt und sollte priorisiert behandelt werden. Betroffene Kennungen: CVE-2026-31431, CVE-2026-43284, CVE-2026-43494, CVE-2026-46300, CVE-2026-46333. Technische Details im Tab „Originaltext“; empfohlene Schritte in der Checkliste.

Originaltext der Quelle (nicht übersetzt) – die deutsche Zusammenfassung findest du im Tab „Kurzfassung".

View CSAF Summary B&R is aware of publicly reported vulnerabilities affecting the Linux kernel versions shipped with the products listed as affected in the advisory. Successful local exploitation of these vulnerabilities could allow an attacker to escalate privileges on the affected system. Public proof-of-concept exploits are available for the vulnerabilities described herein. At the time of publication of this advisory, B&R had no evidence of active exploitation targeting B&R products. The following versions of Impact of Linux Kernel vulnerabilities on B&R products are affected:

Linux for B&R <=12  APROL <APROL-AutoYaST-DVD- V4.4-010.10.260602 X20EDS410 /all 

CVSS Vendor Equipment Vulnerabilities

v3 7.8 B&R Industrial Automation GmbH Impact of Linux Kernel vulnerabilities on B&R products Incorrect Resource Transfer Between Spheres, Write-what-where Condition, Improper Privilege Management, Out-of-bounds Write, Multiple Releases of Same Resource or Handle

Background

Critical Infrastructure Sectors: Critical Manufacturing Countries/Areas Deployed: Worldwide Company Headquarters Location: Switzerland

Vulnerabilities

Expand All +

CVE-2026-31431

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly. View CVE …

Vollständiger Originalartikel ↗

• Betroffenheit im eigenen Stack prüfen (CVE-2026-31431, CVE-2026-43284, CVE-2026-43494, CVE-2026-46300, CVE-2026-46333): Versionen/Komponenten abgleichen.
• Originalquelle / Hersteller-Advisory lesen: https://www.cisa.gov/news-events/ics-advisories/icsa-26-174-06
• Priorität HOCH: laut CISA-KEV aktiv ausgenutzt – bevorzugt patchen.
• Verfügbaren Patch oder Workaround einspielen und dokumentieren.