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CVE-2026-26142: Nuance PowerScribe Remote Code Execution Vulnerability

criticalCVSS 9.8CVE-2026-26142
Deserialization of untrusted data in Nuance PowerScribe allows an unauthorized attacker to execute code over a network.

CSIRTS triage

vendor: Nuanceproduct: PowerScribeRemote code execution
What
Deserialization of untrusted data allows an unauthorized attacker to execute code over a network.
Who is affected
Deployments of Nuance PowerScribe that are vulnerable to this issue.
Urgency
This is a critical vulnerability with a CVSS score of 9.8, requiring immediate attention.
Action
Apply the latest security patch provided by Nuance.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
critical — CVSS 9.8
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26142

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-26142coverage & exploitation statusNVD · CVE.org

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