How severe is CVE-2025-34248?

CVE-2025-34248 has a CVSS 4.0 base score of 7.2, rated high severity.

Is CVE-2025-34248 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-34248?

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-2025-34248 have an EU (EUVD) identifier?

Yes. CVE-2025-34248 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-33559.

When was CVE-2025-34248 published?

CVE-2025-34248 was published on 2025-10-09 and last updated on 2026-06-17.

CVE-2025-34248

CVE-2025-34248 is a high-severity vulnerability with a CVSS 4.0 base score of 7.2. 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-22.

Key facts

Severity: High (CVSS 4.0 base score 7.2)
EPSS exploit prediction: 1% (45th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-33559
Weakness: CWE-22
Published: 2025-10-09
Last modified: 2026-06-17

Description

D-Link Nuclias Connect firmware versions < 1.3.1.4 contain a directory traversal vulnerability within /api/web/dnc/global/database/deleteBackup due to improper sanitization of the deleteBackupList parameter. This can allow an authenticated attacker to delete arbitrary files impacting the integrity and availability of the system.

Frequently asked questions

What is CVE-2025-34248?: D-Link Nuclias Connect firmware versions < 1.3.1.4 contain a directory traversal vulnerability within /api/web/dnc/global/database/deleteBackup due to improper sanitization of the deleteBackupList parameter. This can allow an authenticated attacker to delete arbitrary files impacting the integrity and availability of the system.
How severe is CVE-2025-34248?: CVE-2025-34248 has a CVSS 4.0 base score of 7.2, rated high severity.
Is CVE-2025-34248 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (45th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-34248?: 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-2025-34248 have an EU (EUVD) identifier?: Yes. CVE-2025-34248 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-33559.
When was CVE-2025-34248 published?: CVE-2025-34248 was published on 2025-10-09 and last updated on 2026-06-17.

References

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