Threats / Microsoft / CVE-2024-43461
CVE-2024-43461
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-08-04
Microsoft Windows vulnerability
Microsoft Windows MSHTML Platform contains a UI misrepresentation vulnerability allowing attackers to spoof web pages. Exploited in the wild, often chained with CVE-2024-38112.
Verdict
Today item — known-exploited.
This CWE-451 vulnerability enables UI spoofing attacks where critical information is misrepresented to users. Active exploitation in the wild demonstrates practical threat; chaining with other CVEs amplifies attack surface and user deception risk.
CISA KEV Yes · 2024-09-165EPSS 0.51883 (verify live)6CVSS 8.83CISA SSVC Exploitation: active · Automatable: no · Impact: total4
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
10 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-09-16).
Probability (EPSS)
EPSS 0.51883 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
CVSS 8.8 (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) · Affected: Microsoft, Windows. Confirm exact fixed builds in the vendor advisory.CVSS — CNA-assigned (CVE.org), version 3.1, set at disclosure.
Weakness (CWE)
Mapped to CWE-451 UI Misrepresentation.CWE — CNA-assigned (CVE.org); the weakness class drives how the flaw is exploited.
CISA SSVC (triage disposition)
Exploitation: active · Automatable: no · Technical Impact: totalCISA's own stakeholder-specific triage inputs, published in the CVE record (CISA Coordinator role). NOTE: this is CISA's three decision points; the final Act/Attend/Track decision also requires a Mission & Well-being input not published here, so no overall decision is asserted.
Currency of the record
CISA added this to its KEV catalog 6 days after the CVE record was published.KEV lag = CISA-KEV dateAdded − CVE.org datePublished; a floor on how long the known-exploited flaw sat in the public record before the federal catalog listed it. Severity/weakness here is CNA- or CISA-assigned (current at disclosure), independent of NVD's analysis backlog.
WeaknessCWE-451 · UI Misrepresentation
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious webpage that visually mimics a legitimate site by exploiting the MSHTML UI misrepresentation flaw.
Business
Users cannot reliably distinguish authentic from fraudulent web content, increasing credential theft and malware infection risk.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I chain this vulnerability with CVE-2024-38112 to bypass additional security boundaries and increase the success rate of my spoofing attack.
Business
Multi-stage exploitation chains reduce detection likelihood and expand the attack surface beyond single-vulnerability mitigations.
3
Lateral reach — past segmentation narrative 3
Attacker
I deploy the exploit at scale to redirect users to credential harvesting or malware distribution sites.
Business
Enterprise security teams face elevated incident response costs and potential data breach liability from compromised user accounts.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05