How severe is CVE-2026-35503?

CVE-2026-35503 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-2026-35503 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-2026-35503?

CVE-2026-35503 affects Senselive X3500 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-35503?

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-2026-35503 have an EU (EUVD) identifier?

Yes. CVE-2026-35503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25359.

When was CVE-2026-35503 published?

CVE-2026-35503 was published on 2026-04-24 and last updated on 2026-06-17.

CVE-2026-35503

CVE-2026-35503 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-798.

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-2026-25359
Weakness: CWE-798
Affected product: Senselive X3500 Firmware
Published: 2026-04-24
Last modified: 2026-06-17

Description

A vulnerability in SenseLive X3050’s web management interface allows authentication logic to be performed entirely on the client side, relying on hardcoded values within browser-executed scripts rather than server-side verification. An attacker with access to the login page could retrieve these exposed parameters and gain unauthorized access to administrative functionality.

Frequently asked questions

What is CVE-2026-35503?: A vulnerability in SenseLive X3050’s web management interface allows authentication logic to be performed entirely on the client side, relying on hardcoded values within browser-executed scripts rather than server-side verification. An attacker with access to the login page could retrieve these exposed parameters and gain unauthorized access to administrative functionality.
How severe is CVE-2026-35503?: CVE-2026-35503 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-2026-35503 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-2026-35503?: CVE-2026-35503 affects Senselive X3500 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-35503?: 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-2026-35503 have an EU (EUVD) identifier?: Yes. CVE-2026-35503 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-25359.
When was CVE-2026-35503 published?: CVE-2026-35503 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…
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