Deserialization of untrusted data vulnerability in OpenText, Inc RightFax on Windows, 64 bit, 32 bit allows Object Injection.This issue affects RightFax: through 25.4.
https://support.opentext.com/csm?id=ot_kb_unauthenticated&sysparm_article=KB0861863
Published: 2026-04-15
Updated: 2026-04-15
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
Base Score: 9.3
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
Severity: Critical
EPSS: 0.00041