How severe is CVE-2025-54170?

CVE-2025-54170 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-54170 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-54170?

CVE-2025-54170 affects Qnap Qsync Central. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-54170?

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

Does CVE-2025-54170 have an EU (EUVD) identifier?

Yes. CVE-2025-54170 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207409.

When was CVE-2025-54170 published?

CVE-2025-54170 was published on 2026-02-11 and last updated on 2026-06-17.

CVE-2025-54170

CVE-2025-54170 is a medium-severity vulnerability in Qnap Qsync Central with a CVSS 3.x base score of 6.5. 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-125.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 4.9
EPSS exploit prediction: 0% (39th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-207409
Weakness: CWE-125
Affected product: Qnap Qsync Central
Published: 2026-02-11
Last modified: 2026-06-17

Description

An out-of-bounds read vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to obtain secret data. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) and later

Frequently asked questions

What is CVE-2025-54170?: An out-of-bounds read vulnerability has been reported to affect Qsync Central. If a remote attacker gains a user account, they can then exploit the vulnerability to obtain secret data. We have already fixed the vulnerability in the following version: Qsync Central 5.0.0.4 ( 2026/01/20 ) and later
How severe is CVE-2025-54170?: CVE-2025-54170 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-54170 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (39th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-54170?: CVE-2025-54170 affects Qnap Qsync Central. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-54170?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-54170 have an EU (EUVD) identifier?: Yes. CVE-2025-54170 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-207409.
When was CVE-2025-54170 published?: CVE-2025-54170 was published on 2026-02-11 and last updated on 2026-06-17.

References

https://www.qnap.com/en/security-advisory/qsa-26-02

Affected products (1)

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

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