How severe is CVE-2025-29873?

CVE-2025-29873 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2025-29873 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-29873?

CVE-2025-29873 affects Qnap File Station. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-29873?

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-2025-29873 have an EU (EUVD) identifier?

Yes. CVE-2025-29873 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17335.

When was CVE-2025-29873 published?

CVE-2025-29873 was published on 2025-06-06 and last updated on 2026-06-17.

CVE-2025-29873

CVE-2025-29873 is a high-severity vulnerability in Qnap File Station with a CVSS 3.x base score of 7.5. 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-476.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 5.3
EPSS exploit prediction: 0% (28th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-17335
Weakness: CWE-476
Affected product: Qnap File Station
Published: 2025-06-06
Last modified: 2026-06-17

Description

A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.4847 and later

Frequently asked questions

What is CVE-2025-29873?: A NULL pointer dereference vulnerability has been reported to affect File Station 5. If a remote attacker gains a user account, they can then exploit the vulnerability to launch a denial-of-service (DoS) attack. We have already fixed the vulnerability in the following version: File Station 5 5.5.6.4847 and later
How severe is CVE-2025-29873?: CVE-2025-29873 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2025-29873 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (28th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-29873?: CVE-2025-29873 affects Qnap File Station. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-29873?: 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-2025-29873 have an EU (EUVD) identifier?: Yes. CVE-2025-29873 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17335.
When was CVE-2025-29873 published?: CVE-2025-29873 was published on 2025-06-06 and last updated on 2026-06-17.

References

https://www.qnap.com/en/security-advisory/qsa-25-16

Affected products (1)

cpe:2.3:a:qnap:file_station:*:*:*:*:*:*:*:*

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