VulnerabilityDeferred

CVE-2026-6900

Improper certificate validation vulnerability in B&R Industrial Automation GmbH APROL.

CRITICAL 9.1EPSS 0.22%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (0.22%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

Improper certificate validation vulnerability in B&R Industrial Automation GmbH APROL. This issue affects APROL: before R 4.4-01P5.

CVSS 4.0: 9.1 CRITICALCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 0.22% probability · 13th percentile
CISA KEV: Not listed
Weakness: CWE-295
Source: cybersecurity@ch.abb.com

References

https://br-cws-assets.de-fra-1.linodeobjects.com/SA26P011-661853b7.pdf

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.