CVE-2026-25188
Windows Telephony Service Elevation of Privilege Vulnerability
Description
Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to elevate privileges over an adjacent network.
INFO
Published Date :
March 10, 2026, 6:18 p.m.
Last Modified :
March 13, 2026, 5 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2026-25188
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Apply Windows security updates.
- Ensure Telephony Service is patched.
- Restrict network access to the service.
- Monitor for suspicious activity.
Public PoC/Exploit Available at Github
CVE-2026-25188 has a 1 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-25188.
| URL | Resource |
|---|---|
| https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25188 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-25188 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-25188
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Offline vulnerability scanner for mounted backups and live filesystems. 12 ecosystem scanners, 418K+ vulnerabilities (NVD, OSV, GHSA, MSRC, KEV), 7 output formats including vScan compatible JSON.
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-25188 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-25188 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 13, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* *cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.17763.8511 *cpe:2.3:o:microsoft:windows_10_1809:*:*:*:*:*:*:x86:* versions up to (excluding) 10.0.17763.8511 *cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:arm64:* versions up to (excluding) 10.0.19044.7058 *cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.19044.7058 *cpe:2.3:o:microsoft:windows_10_21h2:*:*:*:*:*:*:x86:* versions up to (excluding) 10.0.19044.7058 *cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:arm64:* versions up to (excluding) 10.0.19045.7058 *cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.19045.7058 *cpe:2.3:o:microsoft:windows_10_22h2:*:*:*:*:*:*:x86:* versions up to (excluding) 10.0.19045.7058 *cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:arm64:* versions up to (excluding) 10.0.22631.6783 *cpe:2.3:o:microsoft:windows_11_23h2:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.22631.6783 *cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:arm64:* versions up to (excluding) 10.0.26100.7979 *cpe:2.3:o:microsoft:windows_11_24h2:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.26100.7979 *cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:arm64:* versions up to (excluding) 10.0.26200.7979 *cpe:2.3:o:microsoft:windows_11_25h2:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.26200.7979 *cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:arm64:* versions up to (excluding) 10.0.28000.1719 *cpe:2.3:o:microsoft:windows_11_26h1:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.28000.1719 *cpe:2.3:o:microsoft:windows_server_2016:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.14393.8957 *cpe:2.3:o:microsoft:windows_server_2019:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.17763.8511 *cpe:2.3:o:microsoft:windows_server_2022:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.20348.4830 *cpe:2.3:o:microsoft:windows_server_2022_23h2:*:*:*:*:*:*:*:* versions up to (excluding) 10.0.25398.2207 *cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.14393.8957 *cpe:2.3:o:microsoft:windows_10_1607:*:*:*:*:*:*:x86:* versions up to (excluding) 10.0.14393.8957 *cpe:2.3:o:microsoft:windows_server_2025:*:*:*:*:*:*:x64:* versions up to (excluding) 10.0.26100.32463 Added Reference Type Microsoft Corporation: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25188 Types: Vendor Advisory -
New CVE Received by [email protected]
Mar. 10, 2026
Action Type Old Value New Value Added Description Heap-based buffer overflow in Windows Telephony Service allows an unauthorized attacker to elevate privileges over an adjacent network. Added CVSS V3.1 AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-122 Added Reference https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-25188