{"id":"CVE-2026-122518","kind":"vulnerability","aliases":["CVE-2026-122518"],"related":[],"title":"Microsoft Edge: out-of-bounds read leaks information over the network","description":"Out-of-bounds read in Microsoft Edge (Chromium-based) allows an unauthorized attacker to disclose information over a network.","summary":"An out-of-bounds memory read in Microsoft Edge (Chromium-based) lets an unauthorized attacker disclose information over a network. The sources give no further detail on what data is exposed.","severity":"medium","cvss":6.5,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Microsoft Edge","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["browser-users","macos","microsoft-edge","other","windows"],"not_affected_if":[],"how_to_check":"- Check the Edge version in edge://settings/help","fix":null,"status":"open","published_at":"2026-11-10T19:20:37+00:00","first_seen_at":"2026-11-10T19:25:11+00:00","triaged_at":"2026-11-10T19:56:18+00:00","updated_at":"2026-11-10T19:56:18+00:00","category":"other","confidence":0.5,"triage":{"at":"2026-11-10T19:56:18Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"internet","title":"Microsoft Edge: out-of-bounds read leaks information over the network","impact":"low","summary":"An out-of-bounds memory read in Microsoft Edge (Chromium-based) lets an unauthorized attacker disclose information over a network. The sources give no further detail on what data is exposed.","audience":"everyone","category":"other","nicknames":[],"who_cares":["microsoft-edge","windows","macos","browser-users"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"attacker reads sensitive memory contents over the network","analyst_note":"Confirm affected Edge versions and whether the fix is a Chromium update at the NVD or Microsoft advisory page.","how_to_check":"- Check the Edge version in edge://settings/help\n- unknown","plain_action":"Update Microsoft Edge to the latest version to get the fix for this flaw.","product_name":"Microsoft Edge","needs_analyst":true,"not_affected_if":[],"who_is_affected":"Anyone running a Chromium-based Microsoft Edge build that is not yet patched is potentially exposed. The sources do not state affected version ranges or the exact trigger.","user_interaction":"unknown","product_ecosystem":"vendor","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000691,"input_tokens":4507,"output_tokens":480,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-122518':15A,18A '-2026':14A,17A 'allow':74C 'attack':46B,77C 'base':42B,73C 'bound':6A,34B,66C 'browser':22B 'browser-us':21B 'chromium':41B,72C 'chromium-bas':40B,71C 'cve':13A,16A 'data':60B 'detail':57B 'disclos':47B,79C 'edg':2A,27B,39B,70C 'edge':20A 'expos':62B 'give':54B 'inform':9A,48B,80C 'leak':8A 'let':43B 'maco':24B 'memori':35B 'microsoft':1A,19A,26B,38B,69C 'microsoft-edg':25B 'network':12A,51B,83C 'out-of-bound':3A,31B,63C 'read':7A,36B,67C 'sourc':53B 'unauthor':45B,76C 'user':23B 'window':29B","nicknames":[],"mitigations":[],"who_affected":"Anyone running a Chromium-based Microsoft Edge build that is not yet patched is potentially exposed. The sources do not state affected version ranges or the exact trigger.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"everyone","plain_action":"Update Microsoft Edge to the latest version to get the fix for this flaw.","pkeys":["edge","microsoftedge"],"ptokens":["edge","microsoft"],"labels":["browserusers","macos","medium","microsoftedge","other","vendor","windows"],"campaign_type":null,"search_a":"'-122518':15A,18A '-2026':14A,17A 'bound':6A 'cve':13A,16A 'edg':2A 'edge':20A 'inform':9A 'leak':8A 'microsoft':1A,19A 'network':12A 'out-of-bound':3A 'read':7A","search_b":"'attack':46B 'base':42B 'bound':34B 'browser':22B 'browser-us':21B 'chromium':41B 'chromium-bas':40B 'data':60B 'detail':57B 'disclos':47B 'edg':27B,39B 'expos':62B 'give':54B 'inform':48B 'let':43B 'maco':24B 'memori':35B 'microsoft':26B,38B 'microsoft-edg':25B 'network':51B 'out-of-bound':31B 'read':36B 'sourc':53B 'unauthor':45B 'user':23B 'window':29B","search_c":"'allow':74C 'attack':77C 'base':73C 'bound':66C 'chromium':72C 'chromium-bas':71C 'disclos':79C 'edg':70C 'inform':80C 'microsoft':69C 'network':83C 'out-of-bound':63C 'read':67C 'unauthor':76C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T19:20:37+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","cvss_by":"secure@microsoft.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-122518","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-122518","severity":null,"published_at":"2026-11-10T19:20:37+00:00","modified_at":"2026-11-10T19:20:37+00:00","first_seen_at":"2026-11-10T19:25:11+00:00","fetched_at":"2026-11-10T19:25:11+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"}