CVE-2024-43461

ENISA EUVD: EUVD-2024-40730 ↗
Exploited in the Wild ✓ Confirmed 0-Day
Triaged: March 5, 2026 6 articles Published: 2024-09-10

EPSS Score

Source: FIRST.org · 2026-05-23
9.9%
probability
This CVE has a 9.9% probability of being exploited in the next 30 days.
0% Top 93.1th percentile of all CVEs 100%

CVSS v3.1

Source: VulnerabilityLookup (CIRCL)
8.8
HIGH
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Temporal
Exploit Code Maturity
Functional
Remediation Level
Official Fix
Report Confidence
Confirmed
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:F/RL:O/RC:C

Description

NVD
Windows MSHTML Platform Spoofing Vulnerability

Affected Products

Microsoft
Windows 11 Version 24H2
10.0.26100.0
Microsoft
Windows 10 Version 1809
10.0.17763.0
Microsoft
Windows Server 2019
10.0.17763.0
Microsoft
Windows Server 2019 (Server Core installation)
10.0.17763.0
Microsoft
Windows Server 2022
10.0.20348.0

Attack Intelligence

Signal Intelligence

Confidence
85%
EPSS 9.9%
CVSS v3.1 8.8
Mentions 6
Last Seen Mar 18, 2025

CNA Information

CNA Assigner
microsoft
CNA Title
Windows MSHTML Platform Spoofing Vulnerability

Analyst Note

CVE-2024-43461 is explicitly named as a zero-day in multiple BleepingComputer articles reporting active exploitation by state-sponsored groups since 2017. The CVE was published 2024-09-10 and patched in Microsoft's September 2024 Patch Tuesday, with exploitation documented prior to patch availability. The evidence of active in-the-wild exploitation with clear timing alignment supports zero-day classification.

Threat Actors 17

MuddyWater
apt_group Information theft and espionage 🇮🇷 IR
Lazarus Group
apt_group Information theft and espionage 🇰🇵 KP
Cobalt
apt_group Financial crime 🇷🇺 RU
APT37
apt_group Information theft and espionage 🇰🇵 KP
APT 28
apt_group Information theft and espionage 🇷🇺 RU
Kimsuky
apt_group Information theft and espionage 🇰🇷 KR
CHRYSENE
apt_group Information theft and espionage 🇮🇷 IR
UAC-0020
apt_group 🇺🇦 UA
SideWinder
apt_group 🇮🇳 IN
RAZOR TIGER
apt_group Information theft and espionage 🇮🇳 IN
Larva-208
apt_group 🇷🇺 RU
APT 22
apt_group Information theft and espionage 🇨🇳 CN
Void Banshee
apt_group unknown
TA571
apt_group 🇷🇺 RU
The White Company
apt_group Information theft and espionage 🇨🇳 CN
Mana Team
apt_group 🇨🇳 CN
APT 5
apt_group Information theft and espionage 🇨🇳 CN

Triage Info

Decided atMar 05, 2026
Published DateSep 10, 2024