PT-2025-15540 · Microsoft · Windows Telephony Service+1

Published 2025-04-08 · Updated 2025-04-10 · CVE-2025-27481

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

AV:N/AC:L/Au:N/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Windows Telephony Service (affected versions not specified)

Description: A stack-based buffer overflow in the Windows Telephony Service allows an unauthorized attacker to execute code over a network.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Stack Overflow

Weakness Enumeration

CWE-121

Related Identifiers

BDU:2025-04259

CVE-2025-27481

Affected Products

Windows

Windows Telephony Service

References · 9

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-27481 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2025-27481 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-27481 · Security Note
• https://bdu.fstec.ru/vul/2025-04259 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-27481 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-27481 · Security Note
• https://twitter.com/CVEnew/status/1909665162228810059 · Twitter Post
• https://twitter.com/vuldb/status/1909671121831747874 · Twitter Post
• https://t.me/msrcreports/1976 · Telegram Post