Vulnerability · Published Apr 15, 2026 · Assigned by OpenText
CVE-2025-15610
Critical 9.3
In plain English
A critical-severity unsafe deserialization in RightFax from OpenText, Inc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 24% of all known vulnerabilities).
Severity (CVSS 4.0)9.3Critical
Exploit odds (30 days)0.3%top 76.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| OpenText, Inc | RightFax | 16.6 – through 16.6 Update713620.2 – through 20.2 Update570521.2 – through 21.2.1.270722.2 – through 22.2.0.164423.4 – through 26.4.0.164424.4 – through 24.4.0.164425.4 – through 25.4.0.1644 |
Weakness: CWE-502 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N