How severe is CVE-2026-40620?

CVE-2026-40620 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-40620 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-40620?

CVE-2026-40620 affects Senselive X3500 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-40620?

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

Does CVE-2026-40620 have an EU (EUVD) identifier?

Yes. CVE-2026-40620 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25362.

When was CVE-2026-40620 published?

CVE-2026-40620 was published on 2026-04-24 and last updated on 2026-06-17.

CVE-2026-40620

CVE-2026-40620 is a critical-severity vulnerability in Senselive X3500 Firmware with a CVSS 3.x base score of 9.8. 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-306.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 9.3
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-25362
Weakness: CWE-306
Affected product: Senselive X3500 Firmware
Published: 2026-04-24
Last modified: 2026-06-17

Description

A vulnerability in SenseLive X3050’s embedded management service allows full administrative control to be established without any form of authentication or authorization on the SenseLive config application. The service accepts management connections from any reachable host, enabling unrestricted modification of critical configuration parameters, operational modes, and device state through a vendor-supplied or compatible client.

Frequently asked questions

What is CVE-2026-40620?: A vulnerability in SenseLive X3050’s embedded management service allows full administrative control to be established without any form of authentication or authorization on the SenseLive config application. The service accepts management connections from any reachable host, enabling unrestricted modification of critical configuration parameters, operational modes, and device state through a vendor-supplied or compatible client.
How severe is CVE-2026-40620?: CVE-2026-40620 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-40620 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-40620?: CVE-2026-40620 affects Senselive X3500 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-40620?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-40620 have an EU (EUVD) identifier?: Yes. CVE-2026-40620 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25362.
When was CVE-2026-40620 published?: CVE-2026-40620 was published on 2026-04-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:senselive:x3500_firmware:1.523:*:*:*:*:*:*:*

More vulnerabilities in Senselive X3500 Firmware

CVE-2026-40630 — Critical (CVSS 9.8): A vulnerability in SenseLive X3050’s web management interface allows unauthorized access to certain configuration…
CVE-2026-35503 — Critical (CVSS 9.8): A vulnerability in SenseLive X3050’s web management interface allows authentication logic to be performed entirely…
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CVE-2026-27841 — High (CVSS 8.1): A vulnerability in SenseLive X3050's web management interface allows state-changing operations to be triggered…

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