{"id":"CVE-2024-29059","kind":"vulnerability","aliases":["CVE-2024-29059"],"related":[],"title":"microsoft .net framework: .NET Framework Information Disclosure Vulnerability","description":"Microsoft .NET Framework contains an information disclosure vulnerability that exposes the ObjRef URI to an attacker, ultimately enabling remote code execution.\n\nCISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","summary":"Microsoft .NET Framework leaks the ObjRef URI to an attacker, which can be chained into remote code execution. CISA lists it as actively exploited in the wild.","severity":"high","cvss":7.5,"epss":null,"exploited":true,"exploited_at":"2025-02-04T00:00:00+00:00","products":[{"name":"Microsoft .NET Framework","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"microsoft .net framework","fixed":[],"affected":"= 3.5","ecosystem":"vendor"},{"name":"microsoft .net framework","fixed":[],"affected":"= 4.7.2","ecosystem":"vendor"},{"name":"microsoft .net framework","fixed":[],"affected":"= 4.8","ecosystem":"vendor"},{"name":"microsoft .net framework","fixed":[],"affected":"= 3.5.1","ecosystem":"vendor"},{"name":"microsoft .net framework","fixed":[],"affected":"= 2.0","ecosystem":"vendor"},{"name":"microsoft .net framework","fixed":[],"affected":"= 3.0","ecosystem":"vendor"},{"name":"microsoft .net framework","fixed":[],"affected":"= 4.6","ecosystem":"vendor"},{"name":"microsoft .net framework","fixed":[],"affected":"= 4.6.2","ecosystem":"vendor"},{"name":"microsoft .net framework","fixed":[],"affected":"= 4.8.1","ecosystem":"vendor"},{"name":"microsoft .net framework","fixed":[],"affected":"= 4.7","ecosystem":"vendor"},{"name":"microsoft .net framework","fixed":[],"affected":"= 4.7.1","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["dotnet","exploited","runtime","windows"],"not_affected_if":["unknown"],"how_to_check":null,"fix":"Apply Microsoft's vendor mitigations per CISA guidance, or discontinue use of the affected .NET Framework component if mitigations are unavailable.","status":"open","published_at":"2024-03-23T00:15:09+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:52:35+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"runtime","confidence":0.5,"triage":{"at":"2026-10-23T20:52:35Z","model":"claude-haiku-5-5","output":{"fix":"Apply Microsoft's vendor mitigations per CISA guidance, or discontinue use of the affected .NET Framework component if mitigations are unavailable.","reach":"unknown","impact":"high","summary":"Microsoft .NET Framework leaks the ObjRef URI to an attacker, which can be chained into remote code execution. CISA lists it as actively exploited in the wild.","category":"runtime","who_cares":["dotnet","windows"],"confidence":0.5,"needs_auth":"unknown","worst_case":"Attacker may achieve remote code execution on the affected host.","analyst_note":"Find Microsoft's advisory for CVE-2024-29059 to get affected and fixed .NET Framework versions, the exact mitigation steps, and the check to confirm exposure.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000436,"input_tokens":2632,"output_tokens":345,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2024':10A,13A '-29059':11A,14A 'action':105C 'activ':77B 'appli':106C 'attack':64B,97C 'chain':68B 'cisa':73B,103C 'code':71B,101C 'contain':85C 'cve':9A,12A 'disclosur':7A,88C 'discontinu':112C 'dotnet':51B 'enabl':99C 'execut':72B,102C 'exploit':52B,78B 'expos':91C 'framework':3A,5A,17A,20A,23A,26A,29A,32A,35A,38A,41A,44A,47A,50A,57B,84C 'inform':6A,87C 'instruct':110C 'leak':58B 'list':74B 'microsoft':1A,15A,18A,21A,24A,27A,30A,33A,36A,39A,42A,45A,48A,55B,82C 'mitig':107C,118C 'net':2A,4A,16A,19A,22A,25A,28A,31A,34A,37A,40A,43A,46A,49A,56B,83C 'objref':60B,93C 'per':108C 'product':116C 'remot':70B,100C 'requir':104C 'runtim':53B 'ultim':98C 'unavail':120C 'uri':61B,94C 'use':113C 'vendor':109C 'vulner':8A,89C 'wild':81B 'window':54B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2024-03-23T00:15:09+00:00","kev":{"dateAdded":"2025-02-04","dueDate":"2025-02-25","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:N/S:U/C:H/I:N/A:N","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2024-29059","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2024-29059","severity":null,"published_at":"2025-02-04T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T20:35:33+00:00","note":null},{"source":"nvd","external_id":"CVE-2024-29059","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-29059","severity":null,"published_at":"2024-03-23T00:15:09+00:00","modified_at":"2026-06-17T07:22:20+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"}