What is CVE-2026-78310?

CVE-2026-78310 is a medium-severity vulnerability in Deltaww Diaenergie, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-24.

How severe is CVE-2026-78310?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Deltaww Diaenergie

CVE-2026-78310

Authorization Bypass Through User-Controlled Key in DIAEnergie. This issue affects DIAEnergie: before 1.11.00.022.

Vulnerability class: IDOR (Insecure Direct Object Reference)

Published 2026-09-24 · last modified 2026-09-24.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.002 (10.3th percentile), scored 2026-09-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 10th percentile — 10.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Deltaww Diaenergie

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

759f5e80-c8e1-4224-bead-956d7b33c98b

Frequently asked questions

What is CVE-2026-78310?: CVE-2026-78310 is a medium-severity vulnerability in Deltaww Diaenergie, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-09-24.
How severe is CVE-2026-78310?: Medium severity. CVSS v3 base score is 4.3 out of 10.