How severe is CVE-2025-15610?

CVE-2025-15610 has a CVSS 4.0 base score of 9.3, rated critical severity.

Is CVE-2025-15610 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2025-15610?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2025-15610 have an EU (EUVD) identifier?

Yes. CVE-2025-15610 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209477.

When was CVE-2025-15610 published?

CVE-2025-15610 was published on 2026-04-15 and last updated on 2026-06-17.

CVE-2025-15610

CVE-2025-15610 is a critical-severity vulnerability with a CVSS 4.0 base score of 9.3. 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-502.

Key facts

Severity: Critical (CVSS 4.0 base score 9.3)
EPSS exploit prediction: 0% (19th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-209477
Weakness: CWE-502
Published: 2026-04-15
Last modified: 2026-06-17

Description

The .NET Remoting framework used by OpenText Fax (RightFax) includes known security vulnerabilities that could be exploited if the service is exposed in environments where the remoting ports are accessible.

Frequently asked questions

What is CVE-2025-15610?: The .NET Remoting framework used by OpenText Fax (RightFax) includes known security vulnerabilities that could be exploited if the service is exposed in environments where the remoting ports are accessible.
How severe is CVE-2025-15610?: CVE-2025-15610 has a CVSS 4.0 base score of 9.3, rated critical severity.
Is CVE-2025-15610 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (19th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2025-15610?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2025-15610 have an EU (EUVD) identifier?: Yes. CVE-2025-15610 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-209477.
When was CVE-2025-15610 published?: CVE-2025-15610 was published on 2026-04-15 and last updated on 2026-06-17.

References

https://support.opentext.com/csm?id=ot_kb_unauthenticated&sysparm_article=KB0861863

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