Cyber Posture

CVE-2025-21248

High

Published: 14 January 2025

Published
14 January 2025
Modified
24 January 2025
KEV Added
—
Patch
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CVSS Score 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.0067 71.4th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Description

Windows Telephony Service Remote Code Execution Vulnerability

Security Summary

CVE-2025-21248 is a Remote Code Execution vulnerability in the Windows Telephony Service, published on 2025-01-14. It carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) and is associated with CWE-122 (Heap-based Buffer Overflow) and NVD-CWE-noinfo.

The vulnerability can be exploited remotely over the network by unauthenticated attackers requiring no privileges, though it demands user interaction. Successful exploitation enables arbitrary code execution in the context of the Telephony Service, resulting in high impacts to confidentiality, integrity, and availability.

Microsoft's update guide at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-21248 provides details on patches and mitigation recommendations for addressing this issue.

Details

CWE(s)
CWE-122NVD-CWE-noinfo

Affected Products

microsoft
windows 10 1507
≤ 10.0.10240.20890 · ≤ 10.0.10240.20890
microsoft
windows 10 1607
≤ 10.0.14393.7699 · ≤ 10.0.14393.7699
microsoft
windows 10 1809
≤ 10.0.17763.6775 · ≤ 10.0.17763.6775
microsoft
windows 10 21h2
≤ 10.0.19044.5371
microsoft
windows 10 22h2
≤ 10.0.19045.5371
microsoft
windows 11 22h2
≤ 10.0.22621.4751
microsoft
windows 11 23h2
≤ 10.0.22631.4751
microsoft
windows 11 24h2
≤ 10.0.26100.2894
microsoft
windows server 2016
≤ 10.0.14393.7699
microsoft
windows server 2019
≤ 10.0.17763.6775
+3 more product configuration(s) — see NVD for full list

References