How severe is CVE-2025-22486?

CVE-2025-22486 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-22486 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-22486?

CVE-2025-22486 affects Qnap File Station. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-22486?

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-2025-22486 have an EU (EUVD) identifier?

Yes. CVE-2025-22486 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17343.

When was CVE-2025-22486 published?

CVE-2025-22486 was published on 2025-06-06 and last updated on 2026-06-17.

CVE-2025-22486

CVE-2025-22486 is a high-severity vulnerability in Qnap File Station with a CVSS 3.x base score of 8.8. 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-295.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 7.1
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-17343
Weakness: CWE-295
Affected product: Qnap File Station
Published: 2025-06-06
Last modified: 2026-06-17

Description

An improper certificate validation vulnerability has been reported to affect File Station 5. If exploited, the vulnerability could allow remote attackers who have gained user access to compromise the security of the system. We have already fixed the vulnerability in the following versions: File Station 5 5.5.6.4791 and later and later

Frequently asked questions

What is CVE-2025-22486?: An improper certificate validation vulnerability has been reported to affect File Station 5. If exploited, the vulnerability could allow remote attackers who have gained user access to compromise the security of the system. We have already fixed the vulnerability in the following versions: File Station 5 5.5.6.4791 and later and later
How severe is CVE-2025-22486?: CVE-2025-22486 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-22486 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-22486?: CVE-2025-22486 affects Qnap File Station. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-22486?: 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-2025-22486 have an EU (EUVD) identifier?: Yes. CVE-2025-22486 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-17343.
When was CVE-2025-22486 published?: CVE-2025-22486 was published on 2025-06-06 and last updated on 2026-06-17.

References

https://www.qnap.com/en/security-advisory/qsa-25-09

Affected products (1)

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

More vulnerabilities in Qnap File Station

CVE-2026-26241 — Critical (CVSS 9.1): A buffer overflow vulnerability has been reported to affect File Station 5. The remote attackers can then exploit the…
CVE-2026-26240 — Critical (CVSS 9.1): A buffer overflow vulnerability has been reported to affect File Station 5. The remote attackers can then exploit the…
CVE-2024-48864 — Critical (CVSS 9.1): A files or directories accessible to external parties vulnerability has been reported to affect File Station 5. If…
CVE-2025-57707 — High (CVSS 8.8): An improper neutralization of directives in statically saved code ('Static Code Injection') vulnerability has been…
CVE-2025-33031 — High (CVSS 8.8): An improper certificate validation vulnerability has been reported to affect File Station 5. If a remote attacker gains…
CVE-2025-30279 — High (CVSS 8.8): An improper certificate validation vulnerability has been reported to affect File Station 5. If a remote attacker…

All CVEs affecting Qnap File Station →

Other CWE-295 (Improper Certificate Validation) vulnerabilities

CVE-2026-4370 — Critical (CVSS 10.0): A vulnerability was identified in Juju from version 3.2.0 until 3.6.19 and from version 4.0 until 4.0.4, where the…
CVE-2026-30836 — Critical (CVSS 10.0): Step CA is an online certificate authority for secure, automated certificate management for DevOps. Versions 0.30.0-rc6…
CVE-2025-68121 — Critical (CVSS 10.0): During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between…
CVE-2022-20703 — Critical (CVSS 10.0): Multiple vulnerabilities in Cisco Small Business RV160, RV260, RV340, and RV345 Series Routers could allow an attacker…
CVE-2021-1471 — Critical (CVSS 9.9): Multiple vulnerabilities in Cisco Jabber for Windows, Cisco Jabber for MacOS, and Cisco Jabber for mobile platforms…
CVE-2026-20184 — Critical (CVSS 9.8): A vulnerability in the integration of single sign-on (SSO) with Control Hub in Cisco Webex Services could have allowed…

Browse all CWE-295 (Improper Certificate Validation) vulnerabilities →