CVE-2025-27477 in Windows

Summary

by MITRE • 04/08/2025

Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to execute code over a network.

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• Responsible: Microsoft
• Disclosure: 04/08/2025
• Moderation: accepted
• Entry: VDB-303969
• CPE: ready
• CWE: CWE-122 (confirmed)
• CVSS: 8.8 (VulDB)
• EPSS: 0.01498
• KEV: no
• Activities: very low
• Sector: Homeoffice, Lawfirm, ...

Sources

• MITRE: https://www.cve.org/CVERecord?id=CVE-2025-27477
• NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-27477
• CVE Details: https://www.cvedetails.com/cve/CVE-2025-27477/