{"id":"CVE-2026-109462","kind":"vulnerability","aliases":["CVE-2026-109462"],"related":[],"title":"Azure Firmware: certificate revocation check bypass lets an authorized user evade security","description":"Improper check for certificate revocation in Azure Firmware allows an authorized attacker to bypass a security feature locally.","summary":"Azure Firmware does not properly check whether a certificate has been revoked. An authorized local attacker can bypass a security feature because of this.","severity":"medium","cvss":4.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["azure","firmware","vendor"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T19:18:15+00:00","first_seen_at":"2026-11-10T19:24:24+00:00","triaged_at":"2026-11-10T20:04:25+00:00","updated_at":"2026-11-10T20:04:25+00:00","category":"vendor","confidence":0.5,"triage":{"at":"2026-11-10T20:04:25Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Azure Firmware: certificate revocation check bypass lets an authorized user evade security","impact":"medium","summary":"Azure Firmware does not properly check whether a certificate has been revoked. An authorized local attacker can bypass a security feature because of this.","audience":"businesses","category":"vendor","nicknames":[],"who_cares":["azure","firmware"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"Authorized local attacker bypasses a security feature via revocation check","analyst_note":"","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":false,"not_affected_if":[],"who_is_affected":"Only Azure Firmware on the vendor's infrastructure is named; the sources do not say which hardware or configurations are exposed. An attacker must already hold an authorized account and act locally. unknown beyond that.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000629,"input_tokens":4490,"output_tokens":359,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-109462':15A,18A '-2026':14A,17A 'allow':51C 'attack':37B,54C 'author':9A,35B,53C 'azur':1A,19B,22B,49C 'bypass':6A,39B,56C 'certif':3A,30B,46C 'check':5A,27B,44C 'cve':13A,16A 'evad':11A 'featur':42B,59C 'firmwar':2A,20B,23B,50C 'improp':43C 'let':7A 'local':36B,60C 'proper':26B 'revoc':4A,47C 'revok':33B 'secur':12A,41B,58C 'user':10A 'vendor':21B 'whether':28B","nicknames":[],"mitigations":[],"who_affected":"Only Azure Firmware on the vendor's infrastructure is named; the sources do not say which hardware or configurations are exposed. An attacker must already hold an authorized account and act locally. unknown beyond that.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["azure","firmware","medium","vendor"],"campaign_type":null,"search_a":"'-109462':15A,18A '-2026':14A,17A 'author':9A 'azur':1A 'bypass':6A 'certif':3A 'check':5A 'cve':13A,16A 'evad':11A 'firmwar':2A 'let':7A 'revoc':4A 'secur':12A 'user':10A","search_b":"'attack':37B 'author':35B 'azur':19B,22B 'bypass':39B 'certif':30B 'check':27B 'featur':42B 'firmwar':20B,23B 'local':36B 'proper':26B 'revok':33B 'secur':41B 'vendor':21B 'whether':28B","search_c":"'allow':51C 'attack':54C 'author':53C 'azur':49C 'bypass':56C 'certif':46C 'check':44C 'featur':59C 'firmwar':50C 'improp':43C 'local':60C 'revoc':47C 'secur':58C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:18:15+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-109462","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-109462","severity":null,"published_at":"2026-11-10T19:18:15+00:00","modified_at":"2026-11-10T19:18:15+00:00","first_seen_at":"2026-11-10T19:24:24+00:00","fetched_at":"2026-11-10T19:24:24+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"}