How severe is CVE-2025-53595?

CVE-2025-53595 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-2025-53595 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-53595?

CVE-2025-53595 affects Qnap Qsync Central. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-53595?

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-2025-53595 have an EU (EUVD) identifier?

Yes. CVE-2025-53595 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32451.

When was CVE-2025-53595 published?

CVE-2025-53595 was published on 2025-10-03 and last updated on 2026-06-17.

CVE-2025-53595

CVE-2025-53595 is a high-severity vulnerability in Qnap Qsync Central 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-89.

Key facts

Severity: High (CVSS 3.x base score 8.8)
CVSS v4: 8.6
EPSS exploit prediction: 0% (31st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-32451
Weakness: CWE-89
Affected product: Qnap Qsync Central
Published: 2025-10-03
Last modified: 2026-06-17

Description

An SQL injection vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to execute unauthorized code or commands. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.2 ( 2025/07/31 ) and later

Frequently asked questions

What is CVE-2025-53595?: An SQL injection vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to execute unauthorized code or commands. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.2 ( 2025/07/31 ) and later
How severe is CVE-2025-53595?: CVE-2025-53595 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-2025-53595 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-53595?: CVE-2025-53595 affects Qnap Qsync Central. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-53595?: 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-2025-53595 have an EU (EUVD) identifier?: Yes. CVE-2025-53595 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-32451.
When was CVE-2025-53595 published?: CVE-2025-53595 was published on 2025-10-03 and last updated on 2026-06-17.

References

https://www.qnap.com/en/security-advisory/qsa-25-35

Affected products (1)

cpe:2.3:a:qnap:qsync_central:*:*:*:*:*:*:*:*

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