Auth bypass in Carecam Hmt.cm2507 Firmware

CVE-2026-85478

A CM2507 IP camera running firmware version HMT.CM2507 v251211.1507 exposes an interactive bootloader through a physical debug interface without requiring authentication. An attacker with physical access could interrupt the normal boot process and access functionality that permits inspection or modification of boot configuration, firmware data, and software loaded by the device.

Vulnerability class: Broken Authentication

Published · last modified .

CVSS v3 metric

CVSS v3 base score 3.5 (Low). Vector: CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.002 (13.0th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 13th percentile — 13.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-85478: held from 0.002 to 0.002.

EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-85478?
CVE-2026-85478 is a low-severity vulnerability in Carecam Hmt.cm2507 Firmware, classified under Missing Authentication for Critical Function. CVSS score: 3.5/10. Published 2026-09-18.
How severe is CVE-2026-85478?
Low severity. CVSS v3 base score is 3.5 out of 10.