{"id":"CVE-2026-20565","kind":"vulnerability","aliases":["CVE-2026-20565"],"related":[],"title":"Modem firmware: out-of-bounds write lets local code escalate privileges","description":"In Modem, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01778991; Issue ID: MSV-8900.","summary":"A bounds check in the modem software is incorrect, allowing an out-of-bounds write. An attacker with local code execution could escalate privileges without user interaction.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["infrastructure","mobile-devices","modem"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-02T03:17:33+00:00","first_seen_at":"2026-11-02T03:31:25+00:00","triaged_at":"2026-11-02T03:32:28+00:00","updated_at":"2026-11-02T03:32:28+00:00","category":"infrastructure","confidence":0.4,"triage":{"at":"2026-11-02T03:32:28Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"local","title":"Modem firmware: out-of-bounds write lets local code escalate privileges","impact":"high","summary":"A bounds check in the modem software is incorrect, allowing an out-of-bounds write. An attacker with local code execution could escalate privileges without user interaction.","audience":"everyone","category":"infrastructure","nicknames":[],"who_cares":["modem","mobile-devices"],"confidence":0.4,"fix_status":"unknown","needs_auth":"unknown","worst_case":"local code gains elevated privileges on the device","analyst_note":"Identify the affected device vendor and chipset, and find the patched firmware or security bulletin for Patch ID MOLY01778991 at https://nvd.nist.gov/vuln/detail/CVE-2026-20565.","how_to_check":"- unknown","plain_action":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000596,"input_tokens":4101,"output_tokens":371,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-20565':15A,18A '-8900':95C 'addit':78C 'allow':33B 'attack':41B 'bound':6A,25B,38B,60C,66C 'check':26B,67C 'code':10A,44B 'could':46B,69C 'cve':13A,16A 'devic':22B 'due':62C 'escal':11A,47B,73C 'execut':45B,79C 'exploit':88C 'firmwar':2A 'id':90C,93C 'incorrect':32B,65C 'infrastructur':19B 'interact':51B,83C 'issu':92C 'lead':70C 'let':8A 'local':9A,43B,72C 'mobil':21B 'mobile-devic':20B 'modem':1A,23B,29B,53C 'moly01778991':91C 'msv':94C 'need':81C,86C 'out-of-bound':3A,35B 'patch':89C 'possibl':57C 'privileg':12A,48B,75C,80C 'softwar':30B 'user':50B,82C 'without':49B 'write':7A,39B,61C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"everyone","plain_action":null,"pkeys":[],"ptokens":[],"labels":["infrastructure","mobiledevices","modem","unknown"],"first_public_at":"2026-11-02T03:17:33+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-20565","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20565","severity":null,"published_at":"2026-11-02T03:17:33+00:00","modified_at":"2026-11-02T03:17:33+00:00","first_seen_at":"2026-11-02T03:31:25+00:00","fetched_at":"2026-11-02T03:31:25+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"}