CVE-2026-4293

The affected Kieback & Peter DDC building controllers are vulnerable to cross-site scripting, enabling JavaScript to be executed by the victim's browser, which allows the attacker to control the browser.

Score

CVSS 3.1 5.3 Medium

Status

Deferred - ics-cert@hq.dhs.gov

Published

2026-05-20

Last modified

2026-05-20

Weaknesses

CWE-79

Affected products

• Ddc4002 (Kieback Peter)
• Ddc4002e (Kieback Peter)
• Ddc4020e (Kieback Peter)
• Ddc4040e (Kieback Peter)
• Ddc4100 (Kieback Peter)
• Ddc4200 (Kieback Peter)
• Ddc4200-l (Kieback Peter)
• Ddc4200e (Kieback Peter)
• Ddc4400 (Kieback Peter)
• Ddc4400e (Kieback Peter)
• Ddc520 (Kieback Peter)

References

• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-139-05.json
• https://www.cisa.gov/news-events/ics-advisories/icsa-26-139-05