THREAT OPS › Threat News › Johnson Controls OpenBlue Employee
Johnson Controls OpenBlue Employee
<p><a href="https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-211-02.json"><strong>View CSAF</strong></a></p> <h2>Summary</h2> <p><strong>Successful exploitation of these vulnerabilities could allow an attacker to upload malicious files, execute stored cross-site scripting attacks, or inject arbitrary HTML content.</strong></p> <p>The following versions of Johnson Contr
MITRE ATT&CK techniques
Indicators of compromise
- CVE-2026-21662cve
- CVE-2026-34495cve
- CVE-2026-34497cve
- https://www.cve.org/CVERecord?id=CVE-2026-21662url
- https://www.johnsoncontrols.com/trust-center/cybersecurity/security-advisoriesurl
- https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:N/I:L/A:Nurl
- https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:Nurl
- https://www.cve.org/CVERecord?id=CVE-2026-34495url
- https://www.cve.org/CVERecord?id=CVE-2026-34497url
Original source: https://www.cisa.gov/news-events/ics-advisories/icsa-26-211-02
Same event, other sources
- Johnson Controls OpenBlue Employeecisa_advisories · 2026-07-30