CVE-2026-26142: CWE-502: Deserialization of Untrusted Data in Microsoft Nuance PowerScribe 360 4.0
Deserialization of untrusted data in Nuance PowerScribe allows an unauthorized attacker to execute code over a network.
AI Analysis
Technical Summary
This vulnerability (CWE-502) in Nuance PowerScribe 360 4.0 arises from unsafe deserialization of untrusted data, enabling remote code execution by an attacker. The CVSS 3.1 base score is 9.8, indicating critical severity with network attack vector, no privileges required, and no user interaction needed. Microsoft has released an official fix for this vulnerability, as documented in their security update guide.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely with high impact on confidentiality, integrity, and availability of the affected system. This can lead to full system compromise without requiring authentication or user interaction.
Mitigation Recommendations
An official patch is available from Microsoft to remediate this vulnerability. Users of Nuance PowerScribe 360 version 4.0 should apply the vendor-provided update immediately. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26142 for detailed patch information and installation instructions.
CVE-2026-26142: CWE-502: Deserialization of Untrusted Data in Microsoft Nuance PowerScribe 360 4.0
Description
Deserialization of untrusted data in Nuance PowerScribe allows an unauthorized attacker to execute code over a network.
CVSS v3.1
Score 9.8critical
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CWE-502) in Nuance PowerScribe 360 4.0 arises from unsafe deserialization of untrusted data, enabling remote code execution by an attacker. The CVSS 3.1 base score is 9.8, indicating critical severity with network attack vector, no privileges required, and no user interaction needed. Microsoft has released an official fix for this vulnerability, as documented in their security update guide.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely with high impact on confidentiality, integrity, and availability of the affected system. This can lead to full system compromise without requiring authentication or user interaction.
Mitigation Recommendations
An official patch is available from Microsoft to remediate this vulnerability. Users of Nuance PowerScribe 360 version 4.0 should apply the vendor-provided update immediately. Refer to the Microsoft advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26142 for detailed patch information and installation instructions.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- microsoft
- Date Reserved
- 2026-02-11T16:24:51.134Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- official-fix
- Vendor Advisory Urls
- [{"url":"https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26142","vendor":"Microsoft"}]
Threat ID: 6a284cb78dd33fbd85664068
Added to database: 06/09/2026, 17:26:15 UTC
Last enriched: 07/29/2026, 21:44:43 UTC
Last updated: 07/31/2026, 21:26:44 UTC
Views: 100
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