{"id":"CVE-2026-118152","kind":"vulnerability","aliases":["CVE-2026-118152"],"related":[],"title":"Microsoft Exchange Server: CSRF flaw lets attacker spoof actions over network","description":"Cross-site request forgery (csrf) in Microsoft Exchange Server allows an unauthorized attacker to perform spoofing over a network.","summary":"A cross-site request forgery flaw in Microsoft Exchange Server lets an unauthorized attacker perform spoofing over the network. The sources do not describe a data exposure or code execution beyond that.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Microsoft Exchange Server","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exchange-server","infrastructure","microsoft","on-premises"],"not_affected_if":["exchange-online"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:19:36+00:00","first_seen_at":"2026-11-10T19:24:49+00:00","triaged_at":"2026-11-10T19:57:46+00:00","updated_at":"2026-11-10T19:57:46+00:00","category":"infrastructure","confidence":0.4,"triage":{"at":"2026-11-10T19:57:46Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Microsoft Exchange Server: CSRF flaw lets attacker spoof actions over network","impact":"medium","summary":"A cross-site request forgery flaw in Microsoft Exchange Server lets an unauthorized attacker perform spoofing over the network. The sources do not describe a data exposure or code execution beyond that.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["exchange-server","microsoft","on-premises"],"confidence":0.4,"fix_status":"unknown","needs_auth":"unknown","worst_case":"attacker performs spoofed actions on behalf of users","analyst_note":"Check the Microsoft Security Response Center advisory for CVE-2026-118152 for affected versions, fixed builds and whether authentication is required.","how_to_check":"- unknown","plain_action":"","product_name":"Microsoft Exchange Server","needs_analyst":true,"not_affected_if":["exchange-online"],"who_is_affected":"Organizations running on-premises Microsoft Exchange Server are the ones exposed; the sources do not state affected versions or configurations. Exchange Online customers are not covered by this description.","user_interaction":"yes","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000685,"input_tokens":4509,"output_tokens":469,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-118152':14A,17A '-2026':13A,16A 'action':9A 'allow':71C 'attack':7A,43B,74C 'beyond':60B 'code':58B 'cross':31B,62C 'cross-sit':30B,61C 'csrf':4A,66C 'cve':12A,15A 'data':55B 'describ':53B 'exchang':2A,22B,38B,69C 'exchange':19A 'exchange-serv':21B 'execut':59B 'exposur':56B 'flaw':5A,35B 'forgeri':34B,65C 'infrastructur':24B 'let':6A,40B 'microsoft':1A,18A,25B,37B,68C 'network':11A,48B,80C 'on-premis':26B 'perform':44B,76C 'premis':28B 'request':33B,64C 'server':3A,20A,23B,39B,70C 'site':32B,63C 'sourc':50B 'spoof':8A,45B,77C 'unauthor':42B,73C","nicknames":[],"mitigations":[],"who_affected":"Organizations running on-premises Microsoft Exchange Server are the ones exposed; the sources do not state affected versions or configurations. Exchange Online customers are not covered by this description.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":["exchangeserver","microsoftexchangeserver"],"ptokens":["exchange","microsoft","server"],"labels":["exchangeserver","infrastructure","medium","microsoft","onpremises","vendor"],"campaign_type":null,"search_a":"'-118152':14A,17A '-2026':13A,16A 'action':9A 'attack':7A 'csrf':4A 'cve':12A,15A 'exchang':2A 'exchange':19A 'flaw':5A 'let':6A 'microsoft':1A,18A 'network':11A 'server':3A,20A 'spoof':8A","search_b":"'attack':43B 'beyond':60B 'code':58B 'cross':31B 'cross-sit':30B 'data':55B 'describ':53B 'exchang':22B,38B 'exchange-serv':21B 'execut':59B 'exposur':56B 'flaw':35B 'forgeri':34B 'infrastructur':24B 'let':40B 'microsoft':25B,37B 'network':48B 'on-premis':26B 'perform':44B 'premis':28B 'request':33B 'server':23B,39B 'site':32B 'sourc':50B 'spoof':45B 'unauthor':42B","search_c":"'allow':71C 'attack':74C 'cross':62C 'cross-sit':61C 'csrf':66C 'exchang':69C 'forgeri':65C 'microsoft':68C 'network':80C 'perform':76C 'request':64C 'server':70C 'site':63C 'spoof':77C 'unauthor':73C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:19:36+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-118152","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118152","severity":null,"published_at":"2026-11-10T19:19:36+00:00","modified_at":"2026-11-10T19:19:37+00:00","first_seen_at":"2026-11-10T19:24:49+00:00","fetched_at":"2026-11-10T19:24:49+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"}