How severe is CVE-2025-53597?

CVE-2025-53597 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.

Is CVE-2025-53597 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-53597?

CVE-2025-53597 affects Qnap License Center. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-53597?

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

Does CVE-2025-53597 have an EU (EUVD) identifier?

Yes. CVE-2025-53597 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-0669.

When was CVE-2025-53597 published?

CVE-2025-53597 was published on 2026-01-02 and last updated on 2026-06-17.

CVE-2025-53597

CVE-2025-53597 is a medium-severity vulnerability in Qnap License Center 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 6.5)
CVSS v4: 1.2
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-0669
Weakness: CWE-787
Affected product: Qnap License Center
Published: 2026-01-02
Last modified: 2026-06-17

Description

A buffer overflow vulnerability has been reported to affect License Center. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: License Center 2.0.36 and later

Frequently asked questions

What is CVE-2025-53597?: A buffer overflow vulnerability has been reported to affect License Center. If a remote attacker gains an administrator account, they can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: License Center 2.0.36 and later
How severe is CVE-2025-53597?: CVE-2025-53597 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability high.
Is CVE-2025-53597 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-53597?: CVE-2025-53597 affects Qnap License Center. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-53597?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-53597 have an EU (EUVD) identifier?: Yes. CVE-2025-53597 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-0669.
When was CVE-2025-53597 published?: CVE-2025-53597 was published on 2026-01-02 and last updated on 2026-06-17.

References

https://www.qnap.com/en/security-advisory/qsa-25-52

Affected products (1)

cpe:2.3:a:qnap:license_center:*:*:*:*:*:*:*:*

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