CVE-2025-26686
Windows TCP/IP Remote Code Execution Vulnerability
Sensitive data storage in improperly locked memory in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
Windows TCP/IP Remote Code Execution Vulnerability
Sensitive data storage in improperly locked memory in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- Record
CVE-2025-26686- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Weakness
- CWE-591
- Updated
- 2026-11-02
EUVDEUVD-2025-10195
Sensitive data storage in improperly locked memory in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- Record
EUVD-2025-10195- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-h9r9-jmq5-x5wh
Sensitive data storage in improperly locked memory in Windows TCP/IP allows an unauthorized...
Sensitive data storage in improperly locked memory in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- Record
GHSA-h9r9-jmq5-x5wh- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-591
- Updated
- 2026-11-02
NVD
Sensitive data storage in improperly locked memory in Windows TCP/IP allows an unauthorized attacker to execute code over a network.
- Record
CVE-2025-26686- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H - Weakness
- CWE-591
- Updated
- 2026-11-02
Affected products
- microsoft windows 10 version 1507
- microsoft windows 10 version 1607
- microsoft windows 10 version 1809
- microsoft windows 10 version 21h2
- microsoft windows 10 version 22h2
- microsoft windows 11 version 22h2
- microsoft windows 11 version 22h3
- microsoft windows 11 version 23h2
- microsoft windows 11 version 24h2
- microsoft windows server 2008 r2 service pack 1
- microsoft windows server 2008 r2 service pack 1 (server core installation)
- microsoft windows server 2008 service pack 2
Show 23 moreShow less
- microsoft windows server 2008 service pack 2 (server core installation)
- microsoft windows server 2012
- microsoft windows server 2012 (server core installation)
- microsoft windows server 2012 r2
- microsoft windows server 2012 r2 (server core installation)
- microsoft windows server 2016
- microsoft windows server 2016 (server core installation)
- microsoft windows server 2019
- microsoft windows server 2019 (server core installation)
- microsoft windows server 2022
- microsoft windows server 2022, 23h2 edition (server core installation)
- microsoft windows server 2025
- microsoft windows server 2025 (server core installation)
- microsoft windows 10 1507
- microsoft windows 10 1607
- microsoft windows 10 1809
- microsoft windows 10 21h2
- microsoft windows 10 22h2
- microsoft windows 11 22h2
- microsoft windows 11 23h2
- microsoft windows 11 24h2
- microsoft windows server 2008
- microsoft windows server 2022 23h2
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | cyghtinc/CVE-2025-26686-poc-A-critical-RCE-vulnerability-in-Windows-TCP-IP-stack | 2025-12-10 |
| PoC in GitHub | mrk336/CVE-2025-26686-The-TCP-IP-Flaw-That-Opens-the-Gates | 2025-09-16 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2025-26686 is a high vulnerability (CVSS 7.5) in Microsoft Windows 10 Version 1507, published April 8, 2025. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.42%, the 73rd percentile. No source names a fixed version.