CVE-2026-26151 [High] | Spoofing in Windows 10 1607

CVE-2026-26151 is rated Low Risk (36.6/100): CVSS High severity, with low exploitation likelihood (EPSS 0.08%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-04-15	—	0.08%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-04-15

—

0.08%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.1	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:R) A real person has to do something—click, install, enable—otherwise it doesn’t land. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:L) Attackers could change some data, but it’s limited—not everything goes. Availability (A:N) Service keeps running; no real outage angle.	2.8	4.2	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.1

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N Click to expand

Attack vector (AV:N): Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L): Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N): No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R): A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H): Serious risk that confidential data gets exposed in a big way.
Integrity (I:L): Attackers could change some data, but it’s limited—not everything goes.
Availability (A:N): Service keeps running; no real outage angle.

2.8

4.2

[email protected]

Affected software / configurations for CVE-2026-26151

Vendor	Product	Version	Raw CPE
microsoft	windows_10_1607	< 10.0.14393.9060	cpe:2.3:o:microsoft:windows_10_1607:::::::x64:*
microsoft	windows_10_1607	< 10.0.14393.9060	cpe:2.3:o:microsoft:windows_10_1607:::::::x86:*
microsoft	windows_10_1809	< 10.0.17763.8644	cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*
microsoft	windows_10_1809	< 10.0.17763.8644	cpe:2.3:o:microsoft:windows_10_1809:::::::x86:*
microsoft	windows_10_21h2	< 10.0.19044.7184	cpe:2.3:o:microsoft:windows_10_21h2:::::::arm64:*
microsoft	windows_10_21h2	< 10.0.19044.7184	cpe:2.3:o:microsoft:windows_10_21h2:::::::x64:*
microsoft	windows_10_21h2	< 10.0.19044.7184	cpe:2.3:o:microsoft:windows_10_21h2:::::::x86:*
microsoft	windows_10_22h2	< 10.0.19045.7184	cpe:2.3:o:microsoft:windows_10_22h2:::::::arm64:*
microsoft	windows_10_22h2	< 10.0.19045.7184	cpe:2.3:o:microsoft:windows_10_22h2:::::::x64:*
microsoft	windows_10_22h2	< 10.0.19045.7184	cpe:2.3:o:microsoft:windows_10_22h2:::::::x86:*
microsoft	windows_11_23h2	< 10.0.22631.6936	cpe:2.3:o:microsoft:windows_11_23h2:::::::arm64:*
microsoft	windows_11_23h2	< 10.0.22631.6936	cpe:2.3:o:microsoft:windows_11_23h2:::::::x64:*
microsoft	windows_11_24h2	< 10.0.26100.8246	cpe:2.3:o:microsoft:windows_11_24h2:::::::arm64:*
microsoft	windows_11_24h2	< 10.0.26100.8246	cpe:2.3:o:microsoft:windows_11_24h2:::::::x64:*
microsoft	windows_11_25h2	< 10.0.26200.8246	cpe:2.3:o:microsoft:windows_11_25h2:::::::arm64:*
microsoft	windows_11_25h2	< 10.0.26200.8246	cpe:2.3:o:microsoft:windows_11_25h2:::::::x64:*
microsoft	windows_11_26h1	< 10.0.28000.1836	cpe:2.3:o:microsoft:windows_11_26h1:::::::arm64:*
microsoft	windows_11_26h1	< 10.0.28000.1836	cpe:2.3:o:microsoft:windows_11_26h1:::::::x64:*
microsoft	windows_server_2012	—	cpe:2.3:o:microsoft:windows_server_2012:-:::::::*
microsoft	windows_server_2012	r2	cpe:2.3:o:microsoft:windows_server_2012:r2:::::::*
microsoft	windows_server_2016	< 10.0.14393.9060	cpe:2.3:o:microsoft:windows_server_2016::::::::
microsoft	windows_server_2019	< 10.0.17763.8644	cpe:2.3:o:microsoft:windows_server_2019::::::::
microsoft	windows_server_2022	< 10.0.20348.5020	cpe:2.3:o:microsoft:windows_server_2022::::::::
microsoft	windows_server_2022_23h2	< 10.0.25398.2274	cpe:2.3:o:microsoft:windows_server_2022_23h2::::::::
microsoft	windows_server_2025	< 10.0.26100.32690	cpe:2.3:o:microsoft:windows_server_2025::::::::

References for CVE-2026-26151

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26151	Vendor Advisory
https://www.vicarius.io/vsociety/posts/cve-2026-26151-detection-script-spoofing-vulnerability-affecting-windows-remote-desktop
https://www.vicarius.io/vsociety/posts/cve-2026-26151-mitigation-script-spoofing-vulnerability-affecting-windows-remote-desktop

URL

CVE-2026-26151 | Remote Desktop Spoofing Vulnerability

Exploit prediction scoring system (EPSS) score for CVE-2026-26151

Common vulnerability scoring system (CVSS) metrics for CVE-2026-26151

Weakness enumeration for CVE-2026-26151

GitHub Security Advisory for CVE-2026-26151

Affected software / configurations for CVE-2026-26151

References for CVE-2026-26151