{"id":"CVE-2026-110068","kind":"vulnerability","aliases":["CVE-2026-110068"],"related":[],"title":"Microsoft Outlook: use-after-free lets a network attacker run code","description":"Use after free in Microsoft Office Outlook allows an unauthorized attacker to execute code over a network.","summary":"A use-after-free bug in Microsoft Office Outlook lets an unauthorized attacker run code over a network. The sources give a CVSS score of 8.8 and do not describe the trigger in more detail.","severity":"high","cvss":8.8,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Microsoft Office Outlook","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["microsoft-office","outlook","package","windows"],"not_affected_if":[],"how_to_check":"- Check the installed Outlook build in File > Account > About Outlook, and compare it with the fixed build in Microsoft's advisory.","fix":null,"status":"open","published_at":"2026-11-10T19:18:25+00:00","first_seen_at":"2026-11-10T19:24:28+00:00","triaged_at":"2026-11-10T19:32:26+00:00","updated_at":"2026-11-10T19:32:26+00:00","category":"package","confidence":0.5,"triage":{"at":"2026-11-10T19:32:26Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Microsoft Outlook: use-after-free lets a network attacker run code","impact":"high","summary":"A use-after-free bug in Microsoft Office Outlook lets an unauthorized attacker run code over a network. The sources give a CVSS score of 8.8 and do not describe the trigger in more detail.","audience":"everyone","category":"package","nicknames":[],"who_cares":["outlook","microsoft-office","windows"],"confidence":0.5,"fix_status":"unknown","needs_auth":"unknown","worst_case":"Attacker runs code on the Outlook user's machine over the network.","analyst_note":"Check Microsoft's security update guide for CVE-2026-110068 for affected builds, fixed versions and whether user interaction is needed.","how_to_check":"- Check the installed Outlook build in File > Account > About Outlook, and compare it with the fixed build in Microsoft's advisory.\n- unknown","plain_action":"Update Microsoft Outlook to the latest version through Microsoft's update channel once Microsoft publishes the fix.","product_name":"Microsoft Office Outlook","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Microsoft Office Outlook installations are the affected product named in the NVD record. The sources do not say which Outlook builds, configurations or message types are exposed, so unknown.","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000715,"input_tokens":4484,"output_tokens":533,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check Microsoft's security update guide for CVE-2026-110068 for affected builds, fixed versions and whether user interaction is needed.","search":"'-110068':15A,18A '-2026':14A,17A '8.8':54B 'allow':71C 'attack':10A,41B,74C 'bug':33B 'code':12A,43B,77C 'cve':13A,16A 'cvss':51B 'describ':58B 'detail':63B 'execut':76C 'free':6A,32B,66C 'give':49B 'let':7A,38B 'microsoft':1A,19A,23B,35B,68C 'microsoft-offic':22B 'network':9A,46B,80C 'offic':24B,36B,69C 'office':20A 'outlook':2A,21A,25B,37B,70C 'packag':26B 'run':11A,42B 'score':52B 'sourc':48B 'trigger':60B 'unauthor':40B,73C 'use':4A,30B,64C 'use-after-fre':3A,29B 'window':27B","nicknames":[],"mitigations":[],"who_affected":"Microsoft Office Outlook installations are the affected product named in the NVD record. The sources do not say which Outlook builds, configurations or message types are exposed, so unknown.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"everyone","plain_action":"Update Microsoft Outlook to the latest version through Microsoft's update channel once Microsoft publishes the fix.","pkeys":["microsoftofficeoutlook","officeoutlook"],"ptokens":["microsoft","office","outlook"],"labels":["high","microsoftoffice","outlook","package","vendor","windows"],"campaign_type":null,"search_a":"'-110068':15A,18A '-2026':14A,17A 'attack':10A 'code':12A 'cve':13A,16A 'free':6A 'let':7A 'microsoft':1A,19A 'network':9A 'office':20A 'outlook':2A,21A 'run':11A 'use':4A 'use-after-fre':3A","search_b":"'8.8':54B 'attack':41B 'bug':33B 'code':43B 'cvss':51B 'describ':58B 'detail':63B 'free':32B 'give':49B 'let':38B 'microsoft':23B,35B 'microsoft-offic':22B 'network':46B 'offic':24B,36B 'outlook':25B,37B 'packag':26B 'run':42B 'score':52B 'sourc':48B 'trigger':60B 'unauthor':40B 'use':30B 'use-after-fre':29B 'window':27B","search_c":"'allow':71C 'attack':74C 'code':77C 'execut':76C 'free':66C 'microsoft':68C 'network':80C 'offic':69C 'outlook':70C 'unauthor':73C 'use':64C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:25+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-2026-110068","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110068","severity":null,"published_at":"2026-11-10T19:18:25+00:00","modified_at":"2026-11-10T19:18:25+00:00","first_seen_at":"2026-11-10T19:24:28+00:00","fetched_at":"2026-11-10T19:24:28+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"}