CVE-2026-12456
Multiple vulnerabilities have been discovered in Microsoft Edge. They allow an attacker to cause an unspecified security issue by the vendor.
CSIRTS triage
- What
- Multiple vulnerabilities have been discovered in Microsoft Edge.
- Who is affected
- All deployments of Microsoft Edge are potentially affected.
- Urgency
- Remediation is necessary as vulnerabilities could be exploited in future attacks.
- Action
- Update to the latest version of Microsoft Edge.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
Advisory coverage (2)
- unknownMultiple Vulnerabilities in Microsoft Edge (June 22, 2026)cert-fr-avis · 2026-06-22
- unknownCVE-2026-12456: Chromium: CVE-2026-12456 Insufficient validation of untrusted input in Extensionsmsrc · 2026-06-09
External references
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