How severe is CVE-2025-40773?

CVE-2025-40773 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2025-40773 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-40773?

CVE-2025-40773 affects Siemens Sipass Integrated. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-40773?

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

Does CVE-2025-40773 have an EU (EUVD) identifier?

Yes. CVE-2025-40773 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34158.

When was CVE-2025-40773 published?

CVE-2025-40773 was published on 2025-10-14 and last updated on 2026-06-17.

CVE-2025-40773

CVE-2025-40773 is a low-severity vulnerability in Siemens Sipass Integrated with a CVSS 3.x base score of 3.5. 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-639.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
CVSS v4: 5.1
EPSS exploit prediction: 0% (8th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-34158
Weakness: CWE-639
Affected product: Siemens Sipass Integrated
Published: 2025-10-14
Last modified: 2026-06-17

Description

A vulnerability has been identified in SiPass integrated (All versions < V3.0). Affected server applications contains a broken access control vulnerability. The authorization mechanism lacks sufficient server-side checks, allowing an attacker to execute a specific API request. Successful exploitation allows an attacker to potentially manipulate data belonging to other users.

Frequently asked questions

What is CVE-2025-40773?: A vulnerability has been identified in SiPass integrated (All versions < V3.0). Affected server applications contains a broken access control vulnerability. The authorization mechanism lacks sufficient server-side checks, allowing an attacker to execute a specific API request. Successful exploitation allows an attacker to potentially manipulate data belonging to other users.
How severe is CVE-2025-40773?: CVE-2025-40773 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over an adjacent network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2025-40773 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (8th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-40773?: CVE-2025-40773 affects Siemens Sipass Integrated. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-40773?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-40773 have an EU (EUVD) identifier?: Yes. CVE-2025-40773 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-34158.
When was CVE-2025-40773 published?: CVE-2025-40773 was published on 2025-10-14 and last updated on 2026-06-17.

References

https://cert-portal.siemens.com/productcert/html/ssa-599451.html

Affected products (1)

cpe:2.3:a:siemens:sipass_integrated:*:*:*:*:*:*:*:*

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