How severe is CVE-2025-22483?

CVE-2025-22483 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-22483 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-2025-22483?

CVE-2025-22483 affects Qnap License Center. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-22483?

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

Does CVE-2025-22483 have an EU (EUVD) identifier?

Yes. CVE-2025-22483 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26220.

When was CVE-2025-22483 published?

CVE-2025-22483 was published on 2025-08-29 and last updated on 2026-06-17.

CVE-2025-22483

CVE-2025-22483 is a medium-severity vulnerability in Qnap License Center with a CVSS 3.x base score of 4.8. 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-79.

Key facts

Severity: Medium (CVSS 3.x base score 4.8)
CVSS v4: 7.1
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-26220
Weakness: CWE-79
Affected product: Qnap License Center
Published: 2025-08-29
Last modified: 2026-06-17

Description

A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to bypass security mechanisms or read application data. We have already fixed the vulnerability in the following versions: License Center 1.8.51 and later License Center 1.9.51 and later

Frequently asked questions

What is CVE-2025-22483?: A cross-site scripting (XSS) vulnerability has been reported to affect several QNAP operating system versions. If a remote attacker gains an administrator account, they can then exploit the vulnerability to bypass security mechanisms or read application data. We have already fixed the vulnerability in the following versions: License Center 1.8.51 and later License Center 1.9.51 and later
How severe is CVE-2025-22483?: CVE-2025-22483 has a CVSS 3.x base score of 4.8, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-22483 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-2025-22483?: CVE-2025-22483 affects Qnap License Center. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-22483?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-22483 have an EU (EUVD) identifier?: Yes. CVE-2025-22483 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26220.
When was CVE-2025-22483 published?: CVE-2025-22483 was published on 2025-08-29 and last updated on 2026-06-17.

References

https://www.qnap.com/en/security-advisory/qsa-25-27

Affected products (1)

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

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