How severe is CVE-2025-25234?

CVE-2025-25234 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2025-25234 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-25234?

CVE-2025-25234 affects Omnissa Unified Access Gateway. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-25234?

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-2025-25234 have an EU (EUVD) identifier?

Yes. CVE-2025-25234 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11481.

When was CVE-2025-25234 published?

CVE-2025-25234 was published on 2025-04-17 and last updated on 2026-06-17.

CVE-2025-25234

CVE-2025-25234 is a high-severity vulnerability in Omnissa Unified Access Gateway with a CVSS 3.x base score of 7.1. 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-942.

Key facts

Severity: High (CVSS 3.x base score 7.1)
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-11481
Weakness: CWE-942
Affected product: Omnissa Unified Access Gateway
Published: 2025-04-17
Last modified: 2026-06-17

Description

Omnissa UAG contains a Cross-Origin Resource Sharing (CORS) bypass vulnerability. A malicious actor with network access to UAG may be able to bypass administrator-configured CORS restrictions to gain access to sensitive networks.

Frequently asked questions

What is CVE-2025-25234?: Omnissa UAG contains a Cross-Origin Resource Sharing (CORS) bypass vulnerability. A malicious actor with network access to UAG may be able to bypass administrator-configured CORS restrictions to gain access to sensitive networks.
How severe is CVE-2025-25234?: CVE-2025-25234 has a CVSS 3.x base score of 7.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2025-25234 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-25234?: CVE-2025-25234 affects Omnissa Unified Access Gateway. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-25234?: 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-2025-25234 have an EU (EUVD) identifier?: Yes. CVE-2025-25234 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-11481.
When was CVE-2025-25234 published?: CVE-2025-25234 was published on 2025-04-17 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:omnissa:unified_access_gateway:*:*:*:*:*:*:*:*

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