CVE-2026-47644

mediumCVSS 6.5covered by 1 sourcefirst seen 2026-06-09

Improper neutralization of special elements in output used by a downstream component ('injection') in Copilot Chat (Microsoft Edge) allows an unauthorized attacker to disclose information over a network.

CSIRTS triage

What: Improper neutralization of special elements in output allows an unauthorized attacker to disclose information over a network.
Who is affected: Users of Microsoft Edge with Copilot Chat feature enabled.
Urgency: Remediation is important due to the medium severity and potential for information disclosure.
Action: Apply the latest security patch for Microsoft Edge.

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

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Exploitation outlook

Low exploitation risk0.73% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 50% of all EPSS-scored CVEs.

Advisory coverage (1)

mediumCVE-2026-47644: Copilot Chat (Microsoft Edge) Information Disclosure Vulnerabilitymsrc · 2026-06-09

External references

NVD record for CVE-2026-47644

CVE.org record

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