How severe is CVE-2025-30398?

CVE-2025-30398 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2025-30398 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-30398?

CVE-2025-30398 primarily affects Microsoft Nuance Powerscribe 360. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2025-30398?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2025-30398 have an EU (EUVD) identifier?

Yes. CVE-2025-30398 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-93391.

When was CVE-2025-30398 published?

CVE-2025-30398 was published on 2025-11-11 and last updated on 2026-06-29.

CVE-2025-30398

CVE-2025-30398 is a high-severity vulnerability in Microsoft Nuance Powerscribe 360 with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-862.

Key facts

Severity: High (CVSS 3.x base score 8.1)
EPSS exploit prediction: 1% (51st percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-93391
Weakness: CWE-862
Affected product: Microsoft Nuance Powerscribe 360
Published: 2025-11-11
Last modified: 2026-06-29

Description

Missing authorization in Nuance PowerScribe allows an unauthorized attacker to disclose information over a network.

Frequently asked questions

What is CVE-2025-30398?: Missing authorization in Nuance PowerScribe allows an unauthorized attacker to disclose information over a network.
How severe is CVE-2025-30398?: CVE-2025-30398 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2025-30398 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-30398?: CVE-2025-30398 primarily affects Microsoft Nuance Powerscribe 360. In total, 20 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2025-30398?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2025-30398 have an EU (EUVD) identifier?: Yes. CVE-2025-30398 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-93391.
When was CVE-2025-30398 published?: CVE-2025-30398 was published on 2025-11-11 and last updated on 2026-06-29.

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-30398

Affected products (20)

cpe:2.3:a:microsoft:nuance_powerscribe_360:4.0.1:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_360:4.0.2:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_360:4.0.3:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_360:4.0.4:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_360:4.0.5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_360:4.0.6:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_360:4.0.7:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_360:4.0.8:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_360:4.0.9:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_one:2019.1:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_one:2019.2:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_one:2019.3:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_one:2019.4:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_one:2019.5:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_one:2019.6:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_one:2019.7:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_one:2019.8:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_one:2019.9:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_one:2019.10:*:*:*:*:*:*:*
cpe:2.3:a:microsoft:nuance_powerscribe_one:2023.1:sp2_patch_7:*:*:*:*:*:*

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