{"id":"CVE-2024-43461","kind":"vulnerability","aliases":["CVE-2024-43461"],"related":[],"title":"Windows MSHTML Platform Spoofing Vulnerability","description":"Microsoft Windows MSHTML Platform contains a user interface (UI) misrepresentation of critical information vulnerability that allows an attacker to spoof a web page. This vulnerability was exploited in conjunction with CVE-2024-38112.\n\nCISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","summary":"A spoofing flaw in the Windows MSHTML Platform lets an attacker display a fake web page that misrepresents what the user is looking at. It was exploited in the wild in combination with CVE-2024-38112.","severity":"high","cvss":8.8,"epss":null,"exploited":true,"exploited_at":"2024-09-16T00:00:00+00:00","products":[{"name":"Microsoft Windows","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows 10 1507","fixed":["10.0.10240.20766"],"affected":"< 10.0.10240.20766","ecosystem":"vendor"},{"name":"microsoft windows 10 1607","fixed":["10.0.14393.7336"],"affected":"< 10.0.14393.7336","ecosystem":"vendor"},{"name":"microsoft windows 10 1809","fixed":["10.0.17763.6293"],"affected":"< 10.0.17763.6293","ecosystem":"vendor"},{"name":"microsoft windows 10 21h2","fixed":["10.0.19044.4894"],"affected":"< 10.0.19044.4894","ecosystem":"vendor"},{"name":"microsoft windows 10 22h2","fixed":["10.0.19045.4894"],"affected":"< 10.0.19045.4894","ecosystem":"vendor"},{"name":"microsoft windows 11 21h2","fixed":["10.0.22000.3197"],"affected":"< 10.0.22000.3197","ecosystem":"vendor"},{"name":"microsoft windows 11 22h2","fixed":["10.0.22621.4169"],"affected":"< 10.0.22621.4169","ecosystem":"vendor"},{"name":"microsoft windows 11 23h2","fixed":["10.0.22621.4169"],"affected":"< 10.0.22621.4169","ecosystem":"vendor"},{"name":"microsoft windows 11 23h2","fixed":["10.0.22631.4169"],"affected":"< 10.0.22631.4169","ecosystem":"vendor"},{"name":"microsoft windows 11 24h2","fixed":["10.0.26100.1742"],"affected":"< 10.0.26100.1742","ecosystem":"vendor"},{"name":"microsoft windows server 2008","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows server 2008","fixed":[],"affected":"= r2","ecosystem":"vendor"},{"name":"microsoft windows server 2012","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft windows server 2012","fixed":[],"affected":"= r2","ecosystem":"vendor"},{"name":"microsoft windows server 2016","fixed":["10.0.14393.7336"],"affected":"< 10.0.14393.7336","ecosystem":"vendor"},{"name":"microsoft windows server 2019","fixed":["10.0.17763.6293"],"affected":"< 10.0.17763.6293","ecosystem":"vendor"},{"name":"microsoft windows server 2022","fixed":["10.0.20348.2700"],"affected":"< 10.0.20348.2700","ecosystem":"vendor"},{"name":"microsoft windows server 2022 23h2","fixed":["10.0.25398.1128"],"affected":"< 10.0.25398.1128","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","microsoft-windows","windows"],"not_affected_if":["patched-windows"],"how_to_check":null,"fix":"Apply the Microsoft update for CVE-2024-43461 per vendor instructions; if mitigations are unavailable, CISA says to discontinue use of the product.","status":"open","published_at":"2024-09-10T17:15:33+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:58:10+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T20:58:10Z","model":"claude-haiku-5-5","output":{"fix":"Apply the Microsoft update for CVE-2024-43461 per vendor instructions; if mitigations are unavailable, CISA says to discontinue use of the product.","reach":"internet","impact":"medium","summary":"A spoofing flaw in the Windows MSHTML Platform lets an attacker display a fake web page that misrepresents what the user is looking at. It was exploited in the wild in combination with CVE-2024-38112.","category":"infrastructure","who_cares":["windows","microsoft-windows"],"confidence":0.6,"needs_auth":"unknown","worst_case":"User is shown a spoofed page and may be tricked into giving credentials or running actions","analyst_note":"Find the Microsoft security update guide entry for CVE-2024-43461 to confirm affected Windows builds, the patch KB, and whether a mitigation exists; the sources give no versions.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["patched-windows"],"user_interaction":"yes","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000473,"input_tokens":2846,"output_tokens":377,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2024':7A,10A,127B,160C '-38112':128B,161C '-43461':8A,11A '10':16A,20A,24A,28A,32A '11':36A,40A,44A,48A,52A '1507':17A '1607':21A '1809':25A '2008':57A,61A '2012':65A,69A '2016':73A '2019':77A '2022':81A,85A '21h2':29A,37A '22h2':33A,41A '23h2':45A,49A,86A '24h2':53A 'action':164C 'allow':144C 'appli':165C 'attack':103B,146C 'cisa':162C 'combin':124B 'conjunct':157C 'contain':133C 'critic':140C 'cve':6A,9A,126B,159C 'discontinu':171C 'display':104B 'exploit':87B,119B,155C 'fake':106B 'flaw':95B 'inform':141C 'infrastructur':88B 'instruct':169C 'interfac':136C 'let':101B 'look':115B 'microsoft':12A,14A,18A,22A,26A,30A,34A,38A,42A,46A,50A,54A,58A,62A,66A,70A,74A,78A,82A,90B,129C 'microsoft-window':89B 'misrepres':110B 'misrepresent':138C 'mitig':166C,177C 'mshtml':2A,99B,131C 'page':108B,151C 'per':167C 'platform':3A,100B,132C 'product':175C 'requir':163C 'server':56A,60A,64A,68A,72A,76A,80A,84A 'spoof':4A,94B,148C 'ui':137C 'unavail':179C 'use':172C 'user':113B,135C 'vendor':168C 'vulner':5A,142C,153C 'web':107B,150C 'wild':122B 'window':1A,91B,92B,98B,130C 'windows':13A,15A,19A,23A,27A,31A,35A,39A,43A,47A,51A,55A,59A,63A,67A,71A,75A,79A,83A","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2024-09-10T17:15:33+00:00","kev":{"dateAdded":"2024-09-16","dueDate":"2024-10-07","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2024-43461","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2024-43461","severity":null,"published_at":"2024-09-16T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T13:39:30+00:00","note":null},{"source":"nvd","external_id":"CVE-2024-43461","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-43461","severity":null,"published_at":"2024-09-10T17:15:33+00:00","modified_at":"2026-08-10T16:19:10+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}