{"id":"CVE-2026-114158","kind":"vulnerability","aliases":["CVE-2026-114158"],"related":[],"title":"Visual Studio: heap buffer overflow lets a network attacker run code","description":"Heap-based buffer overflow in Visual Studio allows an unauthorized attacker to execute code over a network.","summary":"A heap-based buffer overflow in Visual Studio can be triggered over a network by an unauthorized attacker. A successful attack lets the attacker execute code on the affected machine.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["other","visual-studio","windows"],"not_affected_if":[],"how_to_check":"- Check the installed Visual Studio version in the Visual Studio installer or About dialog","fix":null,"status":"open","published_at":"2026-11-10T19:19:09+00:00","first_seen_at":"2026-11-10T19:24:43+00:00","triaged_at":"2026-11-10T19:31:44+00:00","updated_at":"2026-11-10T19:31:44+00:00","category":"other","confidence":0.4,"triage":{"at":"2026-11-10T19:31:44Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Visual Studio: heap buffer overflow lets a network attacker run code","impact":"high","summary":"A heap-based buffer overflow in Visual Studio can be triggered over a network by an unauthorized attacker. A successful attack lets the attacker execute code on the affected machine.","audience":"developers","category":"other","nicknames":[],"who_cares":["visual-studio","windows"],"confidence":0.4,"fix_status":"unknown","needs_auth":"no","worst_case":"Attacker runs code on the developer's machine over the network.","analyst_note":"Find the affected Visual Studio version ranges, the fixed build and the specific network component involved in the NVD or Microsoft advisory for CVE-2026-114158.","how_to_check":"- Check the installed Visual Studio version in the Visual Studio installer or About dialog\n- unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"unknown","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000641,"input_tokens":4488,"output_tokens":384,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Find the affected Visual Studio version ranges, the fixed build and the specific network component involved in the NVD or Microsoft advisory for CVE-2026-114158.","search":"'-114158':14A,17A '-2026':13A,16A 'affect':52B 'allow':62C 'attack':9A,41B,44B,47B,65C 'base':26B,56C 'buffer':4A,27B,57C 'code':11A,49B,68C 'cve':12A,15A 'execut':48B,67C 'heap':3A,25B,55C 'heap-bas':24B,54C 'let':6A,45B 'machin':53B 'network':8A,37B,71C 'overflow':5A,28B,58C 'run':10A 'studio':2A,21B,31B,61C 'success':43B 'trigger':34B 'unauthor':40B,64C 'visual':1A,20B,30B,60C 'visual-studio':19B 'window':22B","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"developers","plain_action":null,"pkeys":[],"ptokens":[],"labels":["high","other","visualstudio","windows"],"campaign_type":null,"search_a":"'-114158':14A,17A '-2026':13A,16A 'attack':9A 'buffer':4A 'code':11A 'cve':12A,15A 'heap':3A 'let':6A 'network':8A 'overflow':5A 'run':10A 'studio':2A 'visual':1A","search_b":"'affect':52B 'attack':41B,44B,47B 'base':26B 'buffer':27B 'code':49B 'execut':48B 'heap':25B 'heap-bas':24B 'let':45B 'machin':53B 'network':37B 'overflow':28B 'studio':21B,31B 'success':43B 'trigger':34B 'unauthor':40B 'visual':20B,30B 'visual-studio':19B 'window':22B","search_c":"'allow':62C 'attack':65C 'base':56C 'buffer':57C 'code':68C 'execut':67C 'heap':55C 'heap-bas':54C 'network':71C 'overflow':58C 'studio':61C 'unauthor':64C 'visual':60C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:09+00:00","kev":null,"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":"nvd","external_id":"CVE-2026-114158","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114158","severity":null,"published_at":"2026-11-10T19:19:09+00:00","modified_at":"2026-11-10T19:19:09+00:00","first_seen_at":"2026-11-10T19:24:43+00:00","fetched_at":"2026-11-10T19:24:43+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}