Is CVE-2025-40806 in the CISA KEV catalog?

No. CVE-2025-40806 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-40806?

CVE-2025-40806 has a CVSS v3 base score of 5.3 (MEDIUM).

What is the EPSS score for CVE-2025-40806?

CVE-2025-40806 has an EPSS score of 0.38% (30th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-40806?

Upgrade gridscale x prepay to 4.2.1 or later.

CVE & CISA-KEV Catalog

CVE-2025-40806

MEDIUM

5.3

CVSS v3

NVD

Description

A vulnerability has been identified in Gridscale X Prepay (All versions < V4.2.1). The affected application is vulnerable to user enumeration due to distinguishable responses. This could allow an unauthenticated remote attacker to determine if a user is valid or not, enabling a brute force attack with valid users.

CWE-204

How to fix

Remediation Available

gridscale x prepayNVD

Affected:< 4.2.1Fixed in:4.2.1CVE-2025-40806derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploit Intelligence

0.38%probability of exploitation in 30 days

30thpercentile

Low risk: more likely to be exploited than 30% of all known CVEs.

References

Vendor Advisory1

cert-portal.siemens.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-01-02.