CVE-2026-4293

MEDIUM 5.3

Kieback & Peter DDC Building Controllers Cross-site Scripting

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-79
Vendor	kieback & peter
Product	ddc4002
Published	May 20, 2026
Last Updated	May 20, 2026

Stay Ahead of the Next One

Get instant alerts for kieback & peter ddc4002

Be the first to know when new medium vulnerabilities affecting kieback & peter ddc4002 are published — delivered to Slack, Telegram or Discord.

Get Free Alerts → Free · No credit card · 60 sec setup

CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

None

Affected Versions

Kieback & Peter / DDC4002

0 ≤ 1.12.14

Kieback & Peter / DDC4100

0 ≤ 1.12.14

Kieback & Peter / DDC4200

0 ≤ 1.12.14

Kieback & Peter / DDC4200-L

0 ≤ 1.12.14

Kieback & Peter / DDC4400

0 ≤ 1.12.14

Kieback & Peter / DDC4002e

0 ≤ 1.23.4

Kieback & Peter / DDC4200e

0 ≤ 1.23.4

Kieback & Peter / DDC4400e

0 ≤ 1.23.4

Kieback & Peter / DDC4020e

0 ≤ 1.23.4

Kieback & Peter / DDC4040e

0 ≤ 1.23.4

Kieback & Peter / DDC520

0 ≤ 1.24.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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

Credits

Maximilian Hildebrand of G DATA Advanced Analytics reported this vulnerability to CISA.