PT-2025-1249 · Microsoft · Windows Telephony Service+1

Published 2025-01-14 · Updated 2025-01-24 · CVE-2025-21417

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 The issue is related to a remote code execution vulnerability in the Windows Telephony Service. It is caused by a buffer overflow in dynamic memory. An attacker could exploit this vulnerability by tricking a user into sending a request to a malicious server, potentially resulting in the server returning malicious data. This could allow a remote attacker to execute arbitrary code and affect the system.

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

RCE

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

BDU:2025-00642

CVE-2025-21417

Affected Products

Windows

Windows Telephony Service

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2025-21417 · Security Note
• https://osv.dev/vulnerability/CVE-2025-21417 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-00642 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21417 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/716861 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21417 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-21417 · Vendor Advisory
• https://twitter.com/windowsforum/status/1879262764784328955 · Twitter Post
• https://twitter.com/zui_e76875/status/1882609262016495778 · Twitter Post
• https://t.me/cvedetector/15313 · Telegram Post
• https://twitter.com/vuldb/status/1879255803204673608 · Twitter Post