CVE-2023-36584 [Exploited] | Microsoft WINDOWS 10 1507 Security Bypass

CVE-2023-36584 is rated Active Exploitation (71.6/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 3.06%). CISA KEV confirms active exploitation (added 2023-11-16) affecting Microsoft / Windows. Unauthenticated remote administrative access may be possible. The CISA remediation deadline has passed—treat as an emergency patch priority.

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-15	15.42%	3.06%	-12.36%
2	2026-02-19	18.52%	15.42%	-3.10%
3	2026-02-07	—	18.52%	—

Date

Old EPSS score

New EPSS score

Delta (New - Old)

2026-06-15

15.42%

3.06%

-12.36%

2026-02-19

18.52%

15.42%

-3.10%

2026-02-07

—

18.52%

—

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
5.4	3.1	MEDIUM	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L` 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:N) Doesn’t really leak secrets in a meaningful way. Integrity (I:L) Attackers could change some data, but it’s limited—not everything goes. Availability (A:L) Might cause slowdowns, glitches, or partial disruption—not a full brick.	2.8	2.5	[email protected]

Base score

Version

Severity

Vector

Exploitability

Impact

Score source

5.4

3.1

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L 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:N): Doesn’t really leak secrets in a meaningful way.
Integrity (I:L): Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L): Might cause slowdowns, glitches, or partial disruption—not a full brick.

2.8

2.5

[email protected]

Affected software / configurations for CVE-2023-36584

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	< 10.0.14393.6351	cpe:2.3:o:microsoft:windows_server_2016::::::::
microsoft	windows_server_2019	< 10.0.17763.4974	cpe:2.3:o:microsoft:windows_server_2019::::::::
microsoft	windows_server_2022	< 10.0.20348.2031	cpe:2.3:o:microsoft:windows_server_2022::::::::

References for CVE-2023-36584

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36584	Patch Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36584	US Government Resource

URL

CVE-2023-36584 | Windows Mark of the Web Security Feature Bypass Vulnerability

CISA KEV Record for CVE-2023-36584

Exploit prediction scoring system (EPSS) score for CVE-2023-36584

Common vulnerability scoring system (CVSS) metrics for CVE-2023-36584

Weakness enumeration for CVE-2023-36584

Affected software / configurations for CVE-2023-36584

References for CVE-2023-36584