{"id":"CVE-2026-20594","kind":"vulnerability","aliases":["CVE-2026-20594"],"related":[],"title":"Modem: out-of-bounds read lets a rogue base station crash the phone","description":"In Modem, there is a possible out of bounds read due to a missing bounds check. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01349680 / MOLY01369097; Issue ID: MSV-9364.","summary":"A missing bounds check in the modem firmware allows an out-of-bounds read. A device that connects to an attacker-controlled rogue base station can be knocked offline remotely, with no privileges or user action needed.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["android","infrastructure","mobile-devices","modem-firmware"],"not_affected_if":["unknown"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-02T03:17:36+00:00","first_seen_at":"2026-11-02T03:31:26+00:00","triaged_at":"2026-11-02T03:32:09+00:00","updated_at":"2026-11-02T03:32:09+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-02T03:32:09Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"network","title":"Modem: out-of-bounds read lets a rogue base station crash the phone","impact":"low","summary":"A missing bounds check in the modem firmware allows an out-of-bounds read. A device that connects to an attacker-controlled rogue base station can be knocked offline remotely, with no privileges or user action needed.","audience":"everyone","category":"infrastructure","nicknames":[],"who_cares":["mobile-devices","modem-firmware","android"],"confidence":0.5,"fix_status":"unknown","needs_auth":"no","worst_case":"Remote denial of service: the device's modem stops working","analyst_note":"Identify which phone models and firmware versions ship the patched MediaTek modem (patch IDs MOLY01349680 / MOLY01369097) and the vendor's fix date; check the NVD entry and the MediaTek security bulletin.","how_to_check":"- unknown","plain_action":"Update your phone to the latest software from your phone maker once a fix is released; the sources name patch IDs but no product versions.","needs_analyst":true,"not_affected_if":["unknown"],"who_is_affected":"Devices with the affected modem firmware (the description cites MediaTek Modem patch IDs MOLY01349680 and MOLY01369097) are exposed when they connect to a rogue base station. The sources do not list affected devices or versions, so whether a given phone is included is unknown.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000677,"input_tokens":4128,"output_tokens":529,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':16A,19A '-20594':17A,20A '-9364':126C 'action':66B 'addit':108C 'allow':37B 'android':21B 'attack':51B,105C 'attacker-control':50B 'base':10A,54B,100C 'bound':5A,31B,42B,76C,82C 'check':32B,83C 'connect':47B,96C 'control':52B,102C 'could':85C 'crash':12A 'cve':15A,18A 'denial':89C 'devic':25B,45B 'due':78C 'execut':109C 'exploit':118C 'firmwar':28B,36B 'id':120C,124C 'infrastructur':22B 'interact':113C 'issu':123C 'knock':58B 'lead':86C 'let':7A 'miss':30B,81C 'mobil':24B 'mobile-devic':23B 'modem':1A,27B,35B,69C 'modem-firmwar':26B 'moly01349680':121C 'moly01369097':122C 'msv':125C 'need':67B,111C,116C 'offlin':59B 'out-of-bound':2A,39B 'patch':119C 'phone':14A 'possibl':73C 'privileg':63B,110C 'read':6A,43B,77C 'remot':60B,88C 'rogu':9A,53B,99C 'servic':91C 'station':11A,55B,101C 'ue':94C 'user':65B,112C","nicknames":[],"mitigations":[],"who_affected":"Devices with the affected modem firmware (the description cites MediaTek Modem patch IDs MOLY01349680 and MOLY01369097) are exposed when they connect to a rogue base station. The sources do not list affected devices or versions, so whether a given phone is included is unknown.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"everyone","plain_action":"Update your phone to the latest software from your phone maker once a fix is released; the sources name patch IDs but no product versions.","pkeys":[],"ptokens":[],"labels":["android","infrastructure","mobiledevices","modemfirmware","unknown"],"first_public_at":"2026-11-02T03:17:36+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-20594","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20594","severity":null,"published_at":"2026-11-02T03:17:36+00:00","modified_at":"2026-11-02T03:17:36+00:00","first_seen_at":"2026-11-02T03:31:26+00:00","fetched_at":"2026-11-02T03:31:26+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}