Arbitrary file upload in Acrel Environmental Monitoring Cloud Platform

CVE-2026-4536

A vulnerability was found in Acrel Environmental Monitoring Cloud Platform 1.1.0. This issue affects some unknown processing. Performing a manipulation results in unrestricted upload. The attack may be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.

Published · last modified .

CVSS v3 metric

CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.005 (38.6th percentile), scored .

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 39th percentile — 38.6% 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-2026-4536: held from 0.003 to 0.005.

EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-4536?
CVE-2026-4536 is a high-severity vulnerability in Acrel Environmental Monitoring Cloud Platform, classified under Improper Access Control. CVSS score: 7.3/10. Published 2026-03-22.
How severe is CVE-2026-4536?
High severity. CVSS v3 base score is 7.3 out of 10.