CVE-2025-25234: unified access — Fix

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.

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CVSS v3.1 Score

7.1

HIGH

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

Weakness Type (CWE)

CWE-942 CWE-942

Affected Products

Vendor	Product	Versions
omnissa	unified_access_gateway	< 2503

References

Advisories & Patches

https://static.omnissa.com/sites/default/files/OMSA-2025-0002.pdf https://www.omnissa.com/omnissa-security-response/

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. It has a CVSS v3.1 base score of 7.1 (HIGH).

How severe is CVE-2025-25234? +

CVE-2025-25234 has a CVSS v3.1 score of 7.1 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2025-25234? +

CVE-2025-25234 affects products from omnissa, specifically: unified_access_gateway. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-25234? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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