How severe is CVE-2026-4536?

CVE-2026-4536 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.

Is CVE-2026-4536 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2026-4536?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-4536 have an EU (EUVD) identifier?

Yes. CVE-2026-4536 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14278.

When was CVE-2026-4536 published?

CVE-2026-4536 was published on 2026-03-22 and last updated on 2026-06-17.

CVE-2026-4536

CVE-2026-4536 is a high-severity vulnerability with a CVSS 3.x base score of 7.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-284.

Key facts

Severity: High (CVSS 3.x base score 7.3)
CVSS v2: 7.5
CVSS v4: 5.5
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14278
Weakness: CWE-284
Published: 2026-03-22
Last modified: 2026-06-17

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.

Frequently asked questions

What is 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.
How severe is CVE-2026-4536?: CVE-2026-4536 has a CVSS 3.x base score of 7.3, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability low.
Is CVE-2026-4536 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2026-4536?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-4536 have an EU (EUVD) identifier?: Yes. CVE-2026-4536 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14278.
When was CVE-2026-4536 published?: CVE-2026-4536 was published on 2026-03-22 and last updated on 2026-06-17.

References

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