How severe is CVE-2025-66359?

CVE-2025-66359 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2025-66359 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-66359?

CVE-2025-66359 affects Logpoint Siem. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-66359?

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-2025-66359 have an EU (EUVD) identifier?

Yes. CVE-2025-66359 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-199835.

When was CVE-2025-66359 published?

CVE-2025-66359 was published on 2025-11-28 and last updated on 2026-06-17.

CVE-2025-66359

CVE-2025-66359 is a high-severity vulnerability in Logpoint Siem with a CVSS 3.x base score of 8.5. 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-79.

Key facts

Severity: High (CVSS 3.x base score 8.5)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-199835
Weakness: CWE-79
Affected product: Logpoint Siem
Published: 2025-11-28
Last modified: 2026-06-17

Description

An issue was discovered in Logpoint before 7.7.0. Insufficient input validation and a lack of output escaping in multiple components leads to a cross-site scripting (XSS) vulnerability.

Frequently asked questions

What is CVE-2025-66359?: An issue was discovered in Logpoint before 7.7.0. Insufficient input validation and a lack of output escaping in multiple components leads to a cross-site scripting (XSS) vulnerability.
How severe is CVE-2025-66359?: CVE-2025-66359 has a CVSS 3.x base score of 8.5, rated high severity. It is exploitable over network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2025-66359 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-66359?: CVE-2025-66359 affects Logpoint Siem. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-66359?: 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-2025-66359 have an EU (EUVD) identifier?: Yes. CVE-2025-66359 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-199835.
When was CVE-2025-66359 published?: CVE-2025-66359 was published on 2025-11-28 and last updated on 2026-06-17.

References

https://servicedesk.logpoint.com/hc/en-us/articles/29158899698333-XSS-Vulnerability-due-to-insufficient-input-validation

Affected products (1)

cpe:2.3:a:logpoint:siem:*:*:*:*:*:*:*:*

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