What is CVE-2026-100737?

CVE-2026-100737 is a medium-severity vulnerability, classified under Hidden Functionality. CVSS score: 4.9/10. Published 2026-10-20.

How severe is CVE-2026-100737?

Medium severity. CVSS v3 base score is 4.9 out of 10.

CVE-2026-100737

CVE-2026-100737

Hidden functionality issue exists in Multiple DVRs (Digital Video Recorders) provided by Atsumi Electric Co., Ltd. A user who can log in to the product with the administrator privilege may upgrade the affected product to unauthorized firmware.

Published 2026-10-20.

CVSS v3 metric

CVSS v3 base score 4.9 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Weakness classification (CWE)

CWE-912 — Hidden Functionality

References

www.atsumi.co.jp/info-20261005.html
jvn.jp/en/jp/JVN88864366/

Frequently asked questions

What is CVE-2026-100737?: CVE-2026-100737 is a medium-severity vulnerability, classified under Hidden Functionality. CVSS score: 4.9/10. Published 2026-10-20.
How severe is CVE-2026-100737?: Medium severity. CVSS v3 base score is 4.9 out of 10.