PT-2025-1053 · Microsoft · Windows+1

Published 2025-01-14 · Updated 2025-01-24 · CVE-2025-21240

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 Microsoft Windows (affected versions not specified)

Description The issue is related to a remote code execution problem in the Windows Telephony Service of Microsoft Windows, caused by a buffer overflow in dynamic memory. This allows a remote attacker to execute arbitrary code and impact 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:2025-00283

CVE-2025-21240

Affected Products

Windows

Windows Telephony Service

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2025-21240 · Security Note
• https://bdu.fstec.ru/vul/2025-00283 · Security Note
• https://osv.dev/vulnerability/CVE-2025-21240 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-21240 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21240 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2025-21240 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/716871 · Security Note
• https://vuldb.com/?id.291694 · Note
• https://twitter.com/windowsforum/status/1879262772208250952 · Twitter Post
• https://twitter.com/vuldb/status/1879235423198978542 · Twitter Post
• https://t.me/cvenotify/108564 · Telegram Post