CVE-2023-36585 [High] | Input Validation Bypass in Windows 10 1507

CVE-2023-36585 is rated Moderate Risk (57.8/100): CVSS High severity, with medium exploitation likelihood (EPSS 2.51%). Review affected assets and schedule remediation.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	3.67%	2.51%	-1.16%
2	2025-11-21	18.85%	3.67%	-15.18%
3	2025-11-18	—	18.85%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

3.67%

2.51%

-1.16%

2025-11-21

18.85%

3.67%

-15.18%

2025-11-18

—

18.85%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
7.5	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H` 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:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:N) Data isn’t meaningfully altered or forged. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	3.6	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

7.5

3.1

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H 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:N): Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U): Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:N): Data isn’t meaningfully altered or forged.
Availability (A:H): Could take the service down hard or make it unusable for people who depend on it.

3.9

3.6

[email protected]

Affected software / configurations for CVE-2023-36585

Vendor	Product	Version	Raw CPE
microsoft	windows_10_1507	< 10.0.10240.20232	cpe:2.3:o:microsoft:windows_10_1507:::::::x64:*
microsoft	windows_10_1507	< 10.0.10240.20232	cpe:2.3:o:microsoft:windows_10_1507:::::::x86:*
microsoft	windows_10_1809	< 10.0.17763.4974	cpe:2.3:o:microsoft:windows_10_1809:::::::arm64:*
microsoft	windows_10_1809	< 10.0.17763.4974	cpe:2.3:o:microsoft:windows_10_1809:::::::x64:*
microsoft	windows_10_1809	< 10.0.17763.4974	cpe:2.3:o:microsoft:windows_10_1809:::::::x86:*
microsoft	windows_10_21h1	< 10.0.19041.3570	cpe:2.3:o:microsoft:windows_10_21h1:::::::arm64:*
microsoft	windows_10_21h1	< 10.0.19041.3570	cpe:2.3:o:microsoft:windows_10_21h1:::::::x64:*
microsoft	windows_10_21h1	< 10.0.19041.3570	cpe:2.3:o:microsoft:windows_10_21h1:::::::x86:*
microsoft	windows_10_22h2	< 10.0.19041.3570	cpe:2.3:o:microsoft:windows_10_22h2:::::::arm64:*
microsoft	windows_10_22h2	< 10.0.19041.3570	cpe:2.3:o:microsoft:windows_10_22h2:::::::x64:*
microsoft	windows_10_22h2	< 10.0.19041.3570	cpe:2.3:o:microsoft:windows_10_22h2:::::::x86:*
microsoft	windows_11_21h2	< 10.0.22000.2538	cpe:2.3:o:microsoft:windows_11_21h2:::::::arm64:*
microsoft	windows_11_21h2	< 10.0.22000.2538	cpe:2.3:o:microsoft:windows_11_21h2:::::::x64:*
microsoft	windows_11_22h2	< 10.0.22621.2428	cpe:2.3:o:microsoft:windows_11_22h2:::::::arm64:*
microsoft	windows_11_22h2	< 10.0.22621.2428	cpe:2.3:o:microsoft:windows_11_22h2:::::::x64:*
microsoft	windows_server_2008	—	cpe:2.3:o:microsoft:windows_server_2008:-:sp2:::::x64:*
microsoft	windows_server_2008	—	cpe:2.3:o:microsoft:windows_server_2008:-:sp2:::::x86:*
microsoft	windows_server_2008	r2	cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:::::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	—	cpe:2.3:o:microsoft:windows_server_2016:-:::::::*
microsoft	windows_server_2019	—	cpe:2.3:o:microsoft:windows_server_2019:-:::::::*
microsoft	windows_server_2022	—	cpe:2.3:o:microsoft:windows_server_2022:-:::::::*

References for CVE-2023-36585

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36585	Patch Vendor Advisory

URL

CVE-2023-36585 | Windows upnphost.dll Denial of Service Vulnerability

Exploit prediction scoring system (EPSS) score for CVE-2023-36585

Common vulnerability scoring system (CVSS) metrics for CVE-2023-36585

Weakness enumeration for CVE-2023-36585

Affected software / configurations for CVE-2023-36585

References for CVE-2023-36585