PT-2025-1163 · Microsoft · Windows Telephony Service+1

Published 2025-01-14 · Updated 2025-11-18 · CVE-2025-21250

Positive Technologies (AI Summary)

CVSS v2.0

10

High

Base vector

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

The Windows Telephony Service is affected by a remote code execution issue, which can be exploited by remote attackers to execute arbitrary code and impact the system. This issue is considered critical. The vulnerable software is Windows Telephony Service, but no specific versions are mentioned. A potential exploit may be found at https://t.co/3Jem6brrcx. #WindowsTelephonyService #RemoteCodeExecution #Windows #RCE #Exploit #WindowsVulnerability #TelephonyService #RemoteAttack #CodeExecution #CriticalVulnerability

Fix

RCE

Heap Based Buffer Overflow

Weakness Enumeration

CWE-122

Related Identifiers

BDU:2025-00444

CVE-2025-21250

Affected Products

Windows

Windows Telephony Service

References · 10

• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-21250 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21250 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/716866 · Security Note
• https://bdu.fstec.ru/vul/2025-00444 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21250 · Security Note
• https://osv.dev/vulnerability/CVE-2025-21250 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-21250 · Security Note
• https://twitter.com/windowsforum/status/1879262768156590502 · Twitter Post
• https://t.me/cvenotify/108573 · Telegram Post
• https://twitter.com/Cezar_H_Linux/status/1990854778436432328 · Twitter Post