Deserialization of Untrusted Data in Microsoft products - CVE-2026-26142
Published: June 15, 2026
Vulnerability identifier: #VU134503
CSH Severity: High
CVSS v4.0: 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/E:U/U:Amber
CVE-ID: CVE-2026-26142
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Microsoft
Affected software:
Nuance PowerScribe 360
Nuance PowerScribe One
PowerScribe One
Nuance PowerScribe 360
Nuance PowerScribe One
PowerScribe One
Detailed vulnerability description
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.
How to mitigate CVE-2026-26142
Install updates from vendor's website.