Deserialization of Untrusted Data in Microsoft products - CVE-2026-26142
Published: June 15, 2026
Vulnerability identifier: #VU134503
CSH Severity: High
CVSS v4: 9.3 [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]
CVE-ID: CVE-2026-26142
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to insecure input validation when processing serialized data in Nuance PowerScribe. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Nuance PowerScribe 360
Nuance PowerScribe One
PowerScribe One
Nuance PowerScribe One
PowerScribe One
How to mitigate CVE-2026-26142
Install updates from vendor's website.
Nuance PowerScribe 360 - addressed in versions 7.0.11.49, 7.0.111.68, 7.0.154.18, 7.0.197.10, 7.0.212.10, 7.0.243.19, 7.0.277.28, 7.0.316.12, 7.0.427.15, 7.0.528.24
Nuance PowerScribe One - addressed in versions 2019.1.96.6, 2019.2.9.11, 2019.3.16.21, 2019.4.9.17, 2019.5.14.40, 2019.6.36.40, 2019.7.107.26, 2019.8.43.19, 2019.9.31.23, 2019.10.36.14
PowerScribe One - addressed in versions 2023.2.3054, 2023.3.9072
Nuance PowerScribe One - addressed in versions 2019.1.96.6, 2019.2.9.11, 2019.3.16.21, 2019.4.9.17, 2019.5.14.40, 2019.6.36.40, 2019.7.107.26, 2019.8.43.19, 2019.9.31.23, 2019.10.36.14
PowerScribe One - addressed in versions 2023.2.3054, 2023.3.9072