Skip to content
Fencer Intel
medium 5.3

CVE-2026-4293 json

Kieback & Peter DDC Building Controllers Cross-site Scripting

published 5mo ago modified 3mo ago also EUVD-2026-31125

cvss
5.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits
0
none known

Summary

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.

Is CVE-2026-4293 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-26-139-05 updated cvss 5.3

Kieback & Peter DDC Building Controllers

  • Kieback & Peter DDC520 <=1.24.1
    affected: fixed in 1.24.2, mitigation
  • Kieback & Peter DDC4002 <=1.12.14
    affected: vendor fix, mitigation
  • Kieback & Peter DDC4002e <=1.23.4 Kieback & Peter DDC4020e <=1.23.4 Kieback & Peter DDC4040e <=1.23.4
    affected: fixed in 1.23.5, mitigation
  • Kieback & Peter DDC4100 <=1.12.14 Kieback & Peter DDC4200 <=1.12.14 Kieback & Peter DDC4200-L <=1.12.14
    affected: vendor fix, mitigation
  • Kieback & Peter DDC4200e <=1.23.4
    affected: fixed in 1.23.5, mitigation
  • Kieback & Peter DDC4400 <=1.12.14
    affected: vendor fix, mitigation
  • Kieback & Peter DDC4400e <=1.23.4
    affected: fixed in 1.23.5, mitigation

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
5mo ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Affected products

  • Kieback & Peter DDC4002
  • Kieback & Peter DDC4100
  • Kieback & Peter DDC4200
  • Kieback & Peter DDC4200-L
  • Kieback & Peter DDC4400
  • Kieback & Peter DDC4002e
  • Kieback & Peter DDC4200e
  • Kieback & Peter DDC4400e
  • Kieback & Peter DDC4020e
  • Kieback & Peter DDC4040e
  • Kieback & Peter DDC520

Classification

Weakness
  • CWE-79 Improper Neutralization of Input During Web Page Generation

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.