Is CVE-2026-4536 in the CISA KEV catalog?

No. CVE-2026-4536 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2026-4536?

CVE-2026-4536 has a CVSS v3 base score of 7.3 (HIGH).

What is the EPSS score for CVE-2026-4536?

CVE-2026-4536 has an EPSS score of 0.28% (20th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2026-4536

HIGH

7.3

CVSS v3

NVD

Description

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.

CWE-284Improper Access Control CWE-434Unrestricted File Upload

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityLow

AvailabilityLow

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Exploit Intelligence

0.28%probability of exploitation in 30 days

20thpercentile

Low risk: more likely to be exploited than 20% of all known CVEs.

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-29.