CVE-2024-43461 | Windows MSHTML Platform Spoofing Vulnerability

Exp

Windows MSHTML Platform Spoofing Vulnerability

Published: 2024-09-10 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]

NVD Status：Analyzed，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2024-43461

KEV EPSS CVSS CWE Affected

Conclusion & alert: CVE-2024-43461 is rated Critical Active Threat (94.5/100): CVSS High severity, with high exploitation likelihood (EPSS 51.88%, 99th percentile). Core evidence: CISA KEV confirms active exploitation (added 2024-09-16) affecting Microsoft / Windows. a weakness (CWE-451) Unauthenticated remote administrative access may be possible. Mandatory action: The CISA remediation deadline has passed—treat as an emergency patch priority.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

CISA KEV Record for CVE-2024-43461

Name: Microsoft Windows MSHTML Platform Spoofing Vulnerability · CISA KEV detail

Exploit added: 2024-09-16

Action due: 2024-10-07

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Exploit prediction scoring system (EPSS) score for CVE-2024-43461

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-27	52.16%	51.88%	-0.28%
2	2026-06-17	46.77%	52.16%	+5.39%
3	2026-06-15	—	46.77%	—

Full EPSS history (45 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2024-43461

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
8.8	3.1	HIGH	`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/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: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:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	2.8	5.9	[email protected]

Weakness enumeration for CVE-2024-43461

CWE-451 MITRE ↗

Affected software / configurations for CVE-2024-43461

Vendor	Product	Version	Raw CPE
microsoft	windows_10_1507	< 10.0.10240.20766	cpe:2.3:o:microsoft:windows_10_1507:::::::x64:*
microsoft	windows_10_1507	< 10.0.10240.20766	cpe:2.3:o:microsoft:windows_10_1507:::::::x86:*
microsoft	windows_10_1607	< 10.0.14393.7336	cpe:2.3:o:microsoft:windows_10_1607:::::::x64:*
microsoft	windows_10_1607	< 10.0.14393.7336	cpe:2.3:o:microsoft:windows_10_1607:::::::x86:*
microsoft	windows_10_1809	< 10.0.17763.6293	cpe:2.3:o:microsoft:windows_10_1809::::::::
microsoft	windows_10_21h2	< 10.0.19044.4894	cpe:2.3:o:microsoft:windows_10_21h2::::::::
microsoft	windows_10_22h2	< 10.0.19045.4894	cpe:2.3:o:microsoft:windows_10_22h2:::::::arm64:*
microsoft	windows_10_22h2	< 10.0.19045.4894	cpe:2.3:o:microsoft:windows_10_22h2:::::::x64:*
microsoft	windows_10_22h2	< 10.0.19045.4894	cpe:2.3:o:microsoft:windows_10_22h2:::::::x86:*
microsoft	windows_11_21h2	< 10.0.22000.3197	cpe:2.3:o:microsoft:windows_11_21h2::::::::
microsoft	windows_11_22h2	< 10.0.22621.4169	cpe:2.3:o:microsoft:windows_11_22h2::::::::
microsoft	windows_11_23h2	< 10.0.22621.4169	cpe:2.3:o:microsoft:windows_11_23h2:::::::arm64:*
microsoft	windows_11_23h2	< 10.0.22631.4169	cpe:2.3:o:microsoft:windows_11_23h2:::::::x64:*
microsoft	windows_11_24h2	< 10.0.26100.1742	cpe:2.3:o:microsoft:windows_11_24h2::::::::
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::::::x64:
microsoft	windows_server_2012	—	cpe:2.3:o:microsoft:windows_server_2012:-::::::x64:
microsoft	windows_server_2012	r2	cpe:2.3:o:microsoft:windows_server_2012:r2::::::x64:
microsoft	windows_server_2016	< 10.0.14393.7336	cpe:2.3:o:microsoft:windows_server_2016::::::::
microsoft	windows_server_2019	< 10.0.17763.6293	cpe:2.3:o:microsoft:windows_server_2019::::::::
microsoft	windows_server_2022	< 10.0.20348.2700	cpe:2.3:o:microsoft:windows_server_2022::::::::
microsoft	windows_server_2022_23h2	< 10.0.25398.1128	cpe:2.3:o:microsoft:windows_server_2022_23h2::::::::

References for CVE-2024-43461

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2024-43461	Patch Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-43461	US Government Resource

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