How severe is CVE-2025-34253?

CVE-2025-34253 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-34253 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-34253?

CVE-2025-34253 affects Dlink Nuclias Connect. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-34253?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-34253 have an EU (EUVD) identifier?

Yes. CVE-2025-34253 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34830.

When was CVE-2025-34253 published?

CVE-2025-34253 was published on 2025-10-16 and last updated on 2026-06-17.

CVE-2025-34253

CVE-2025-34253 is a medium-severity vulnerability in Dlink Nuclias Connect with a CVSS 3.x base score of 5.4. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 5.1
EPSS exploit prediction: 1% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-34830
Weakness: CWE-79
Affected product: Dlink Nuclias Connect
Published: 2025-10-16
Last modified: 2026-06-17

Description

D-Link Nuclias Connect firmware versions <= 1.3.1.4 contain a stored cross-site scripting (XSS) vulnerability due to improper sanitization of the 'Network' field when editing the configuration, creating a profile, and adding a network. An authenticated attacker can inject arbitrary JavaScript to be executed in the context of other users viewing the profile entry. NOTE: D-Link states that a fix is under development.

Frequently asked questions

What is CVE-2025-34253?: D-Link Nuclias Connect firmware versions <= 1.3.1.4 contain a stored cross-site scripting (XSS) vulnerability due to improper sanitization of the 'Network' field when editing the configuration, creating a profile, and adding a network. An authenticated attacker can inject arbitrary JavaScript to be executed in the context of other users viewing the profile entry. NOTE: D-Link states that a fix is under development.
How severe is CVE-2025-34253?: CVE-2025-34253 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-34253 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-34253?: CVE-2025-34253 affects Dlink Nuclias Connect. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-34253?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-34253 have an EU (EUVD) identifier?: Yes. CVE-2025-34253 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34830.
When was CVE-2025-34253 published?: CVE-2025-34253 was published on 2025-10-16 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:dlink:nuclias_connect:*:*:*:*:*:*:*:*

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