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CVE-2026-47646: Dynamics 365 Customer Voice Spoofing Vulnerability

criticalCVSS 9.3CVE-2026-47646
Improper neutralization of input during web page generation ('cross-site scripting') in Dynamics 365 Customer Voice allows an unauthorized attacker to perform spoofing over a network.

CSIRTS triage

What
Improper neutralization of input allows an unauthorized attacker to perform spoofing over a network.
Who is affected
Users of Dynamics 365 Customer Voice.
Urgency
Remediation is critical due to the high severity and potential for exploitation.
Action
Apply the latest security updates for Dynamics 365 Customer Voice.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
critical — CVSS 9.3
Published
2026-06-09
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-47646

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-2026-47646coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.

Recent advisories for Dynamics

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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