CVE-2026-71456

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.09% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 0.6% of scored records. A rank, not a probability.

NVD base score

8.5 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-10-26.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-10-26 16:20Z3 DAYS AGO

Last updated

2026-10-26 16:20Z3 DAYS AGO

Reserved

2026-08-06

Assigning CNA

jci

Record state

PUBLISHED

Severity

High (CVSS 8.5)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-321Use of Hard-coded Cryptographic KeyVariant

Data version

5.2

Document digest

4ad8637a26577bef5937155b03846fb41f1ac000126b5828b261107c497f89f9

• www.johnsoncontrols.comhttps://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisories