CVE-2025-40806
CVE-2025-40806 is a medium-severity vulnerability in Siemens Gridscale X Prepay with a CVSS 3.x base score of 5.3. 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-204.
Key facts
- Severity: Medium (CVSS 3.x base score 5.3)
- CVSS v4: 6.9
- EPSS exploit prediction: 0% (31st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2025-201927
- Weakness: CWE-204
- Affected product: Siemens Gridscale X Prepay
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2025-40806?
- 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.
- How severe is CVE-2025-40806?
- CVE-2025-40806 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity none, and availability none.
- Is CVE-2025-40806 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (31st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2025-40806?
- CVE-2025-40806 affects Siemens Gridscale X Prepay. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2025-40806?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2025-40806 have an EU (EUVD) identifier?
- Yes. CVE-2025-40806 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-201927.
- When was CVE-2025-40806 published?
- CVE-2025-40806 was published on 2025-12-09 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:a:siemens:gridscale_x_prepay:*:*:*:*:*:*:*:*
More vulnerabilities in Siemens Gridscale X Prepay
- CVE-2025-40807 — Medium (CVSS 6.3): A vulnerability has been identified in Gridscale X Prepay (All versions < V4.2.1). The affected application is…
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