PT-2025-1167 · Microsoft · Windows Telephony Service+1

Published 2025-01-14 · Updated 2025-01-24 · CVE-2025-21245

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 problem in the Windows Telephony Service, which can be exploited by remote attackers to execute arbitrary code. This can impact the system. The estimated number of potentially affected devices worldwide is not provided. There is no information about real-world incidents where this issue was exploited.

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

RCE

Out of bounds Read

Heap Based Buffer Overflow

Weakness Enumeration

CWE-125

CWE-122

Related Identifiers

BDU:2025-00448

CVE-2025-21245

Affected Products

Windows

Windows Telephony Service

References · 9

• https://osv.dev/vulnerability/CVE-2025-21245 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21245 · Security Note
• https://safe-surf.ru/specialists/bulletins-nkcki/716877 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2025-21245 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-21245 · Vendor Advisory
• https://bdu.fstec.ru/vul/2025-00448 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21245 · Vendor Advisory
• https://twitter.com/windowsforum/status/1879262784757678323 · Twitter Post
• https://t.me/cvenotify/108569 · Telegram Post