High CVSS 7

CVE-2026-64887

NVD analysis in progress

Use of hard-coded cryptographic key vulnerability in Johnson Controls Airwall allows : Cryptanalytic Attack. This issue affects Airwall: before 4.1.

What this means

Exposure: Exploitable with local access to the machine, without authentication and with no action from the victim.
Impact: An attacker can read sensitive data and alter some data.
Likelihood: Its EPSS score stays low: nothing points to imminent exploitation, which is no reason to leave it unpatched.

What to doFold into the next patch cycle.

Read automatically from the CVSS vector, the weakness type (CWE) and the EPSS score. The technical description above remains the one published by NIST.

Published: 14 August 2026
CVSS: 7 (v4.0) CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
EPSS: 0.11% probability of exploitation within 30 days · above 2% of all CVEs
Weakness: CWE-321
Sources: nvd

References

https://nvd.nist.gov/vuln/detail/CVE-2026-64887