Johnson Controls OpenBlue Employee — CVE-2026-21662

Summary

View CSAF Summary Successful exploitation of these vulnerabilities could allow an attacker to upload malicious files, execute stored cross-site scripting attacks, or inject arbitrary HTML content. The following versions of Johnson Controls OpenBlue Employee are affected: OpenBlue Employee (FMS Employee) CVSS Vendor Equipment Vulnerabilities v3 2.4 Johnson Controls Inc. Johnson Controls OpenBlue Employee…

Timeline

Published by source

2026-07-30

Risk context

• Reported severity or threat level: medium.
• Review exposure for the affected product or family: ICS Advisory.

Product

ICS Advisory

What to do

General, cautious steps (verify details in the official source):

• Review exposure and plan remediation based on risk and environment.
• Identify affected product versions in your inventory and verify whether you are impacted.
• Apply vendor patches/updates or recommended mitigations as soon as available.
• Read the official advisory for exact affected versions and remediation steps.

Official advisory

• Read the official source
• CVE Record
• NVD

Evidence and provenance

Canonical advisory ID

CVE-2026-21662

Source

CISA ICS

Vendor

CISA

Published by source

2026-07-30

Last source activity

2026-07-30

Additional identifiers

ICSA-26-211-02

Curated by

hlukh.ch

Related advisories and connections

These advisories are connected by shared CVE, product, vendor, source, or time signals.