How severe is CVE-2025-51966?

CVE-2025-51966 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-51966 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-51966?

CVE-2025-51966 affects U-tools Utools. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-51966?

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

Does CVE-2025-51966 have an EU (EUVD) identifier?

Yes. CVE-2025-51966 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26422.

When was CVE-2025-51966 published?

CVE-2025-51966 was published on 2025-09-02 and last updated on 2026-06-17.

CVE-2025-51966

CVE-2025-51966 is a medium-severity vulnerability in U-tools Utools with a CVSS 3.x base score of 6.1. 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 6.1)
EPSS exploit prediction: 0% (14th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-26422
Weakness: CWE-79
Affected product: U-tools Utools
Published: 2025-09-02
Last modified: 2026-06-17

Description

A cross-site scripting (XSS) vulnerability exists in the PDF preview functionality of uTools thru 7.1.1. When a user previews a specially crafted PDF file, embedded JavaScript code executes within the application's privileged context, potentially allowing attackers to steal sensitive data or perform unauthorized actions.

Frequently asked questions

What is CVE-2025-51966?: A cross-site scripting (XSS) vulnerability exists in the PDF preview functionality of uTools thru 7.1.1. When a user previews a specially crafted PDF file, embedded JavaScript code executes within the application's privileged context, potentially allowing attackers to steal sensitive data or perform unauthorized actions.
How severe is CVE-2025-51966?: CVE-2025-51966 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-51966 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (14th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-51966?: CVE-2025-51966 affects U-tools Utools. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-51966?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-51966 have an EU (EUVD) identifier?: Yes. CVE-2025-51966 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-26422.
When was CVE-2025-51966 published?: CVE-2025-51966 was published on 2025-09-02 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:u-tools:utools:*:*:*:*:*:*:*:*

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