{"id":"CVE-2026-110052","kind":"vulnerability","aliases":["CVE-2026-110052"],"related":[],"title":"Microsoft Word: use-after-free lets a network attacker run code","description":"Use after free in Microsoft Office Word allows an unauthorized attacker to execute code over a network.","summary":"A memory-handling flaw in Microsoft Office Word lets an attacker who reaches the victim over a network run code on the machine. The NVD record gives it a CVSS score of 7.5 and says no product ranges or fixed versions were provided.","severity":"high","cvss":7.5,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Microsoft Office Word","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["microsoft-office","other","windows","word"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:18:22+00:00","first_seen_at":"2026-11-10T19:24:27+00:00","triaged_at":"2026-11-10T19:47:17+00:00","updated_at":"2026-11-10T19:47:17+00:00","category":"other","confidence":0.5,"triage":{"at":"2026-11-10T19:47:17Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Microsoft Word: use-after-free lets a network attacker run code","impact":"high","summary":"A memory-handling flaw in Microsoft Office Word lets an attacker who reaches the victim over a network run code on the machine. The NVD record gives it a CVSS score of 7.5 and says no product ranges or fixed versions were provided.","audience":"everyone","category":"other","nicknames":[],"who_cares":["microsoft-office","word","windows"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"Attacker runs code on the victim's computer over the network.","analyst_note":"Check the Microsoft Security Update Guide entry for CVE-2026-110052 for affected versions, the fixed build and whether user interaction (opening a document) is required.","how_to_check":"unknown","plain_action":"Update Microsoft Word through Microsoft's usual update channel once Microsoft publishes a fix for this flaw.","product_name":"Microsoft Office Word","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.00067,"input_tokens":4480,"output_tokens":444,"severity_before":"high"},"analyst_status":"queued","analyst_note":"Check the Microsoft Security Update Guide entry for CVE-2026-110052 for affected versions, the fixed build and whether user interaction (opening a document) is required.","search":"'-110052':15A,18A '-2026':14A,17A '7.5':61B 'allow':79C 'attack':10A,39B,82C 'code':12A,48B,85C 'cve':13A,16A 'cvss':58B 'execut':84C 'fix':68B 'flaw':32B 'free':6A,74C 'give':55B 'handl':31B 'let':7A,37B 'machin':51B 'memori':30B 'memory-handl':29B 'microsoft':1A,19A,23B,34B,76C 'microsoft-offic':22B 'network':9A,46B,88C 'nvd':53B 'offic':24B,35B,77C 'office':20A 'product':65B 'provid':71B 'rang':66B 'reach':41B 'record':54B 'run':11A,47B 'say':63B 'score':59B 'unauthor':81C 'use':4A,72C 'use-after-fre':3A 'version':69B 'victim':43B 'window':26B 'word':2A,21A,27B,36B,78C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"everyone","plain_action":"Update Microsoft Word through Microsoft's usual update channel once Microsoft publishes a fix for this flaw.","pkeys":["microsoftofficeword","officeword"],"ptokens":["microsoft","office","word"],"labels":["high","microsoftoffice","other","vendor","windows","word"],"campaign_type":null,"search_a":"'-110052':15A,18A '-2026':14A,17A 'attack':10A 'code':12A 'cve':13A,16A 'free':6A 'let':7A 'microsoft':1A,19A 'network':9A 'office':20A 'run':11A 'use':4A 'use-after-fre':3A 'word':2A,21A","search_b":"'7.5':61B 'attack':39B 'code':48B 'cvss':58B 'fix':68B 'flaw':32B 'give':55B 'handl':31B 'let':37B 'machin':51B 'memori':30B 'memory-handl':29B 'microsoft':23B,34B 'microsoft-offic':22B 'network':46B 'nvd':53B 'offic':24B,35B 'product':65B 'provid':71B 'rang':66B 'reach':41B 'record':54B 'run':47B 'say':63B 'score':59B 'version':69B 'victim':43B 'window':26B 'word':27B,36B","search_c":"'allow':79C 'attack':82C 'code':85C 'execut':84C 'free':74C 'microsoft':76C 'network':88C 'offic':77C 'unauthor':81C 'use':72C 'word':78C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:22+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:H/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-2026-110052","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-110052","severity":null,"published_at":"2026-11-10T19:18:22+00:00","modified_at":"2026-11-10T19:18:22+00:00","first_seen_at":"2026-11-10T19:24:27+00:00","fetched_at":"2026-11-10T19:24:27+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"}