Is CVE-2025-25234 in the CISA KEV catalog?

No. CVE-2025-25234 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2025-25234?

CVE-2025-25234 has a CVSS v3 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2025-25234?

CVE-2025-25234 has an EPSS score of 0.27% (19th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2025-25234?

Upgrade unified access gateway to 2503 or later.

CVE & CISA-KEV Catalog

CVE-2025-25234

HIGH

7.1

CVSS v3

NVD

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.

CWE-942

How to fix

Remediation Available

unified access gatewayNVD

Affected:< 2503Fixed in:2503CVE-2025-25234derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityLow

AvailabilityNone

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

Exploit Intelligence

0.27%probability of exploitation in 30 days

19thpercentile

Low risk: more likely to be exploited than 19% of all known CVEs.

References

Vendor Advisory2

Related Vulnerabilities

Other CWE-942 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2026-22812	High	8.8	17%	-	Fix
CVE-2023-38122	High	7.2	1.5%	-	Fix
CVE-2019-14860	Medium	6.5	1.2%	-	Fix
CVE-2023-38125	High	8.8	1.1%	-	Fix
CVE-2022-31736	Critical	9.8	1.1%	-	Fix
CVE-2020-36851	Unscored	-	1.0%	-	-

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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 2025-04-21.