{"id":"CVE-2026-20573","kind":"vulnerability","aliases":["CVE-2026-20573"],"related":[],"title":"AFE: double free memory corruption lets a System-privilege process escalate","description":"In afe, there is a possible memory corruption due to double free. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: ALPS11431412; Issue ID: MSV-9923.","summary":"A double free in the afe component can corrupt memory. An attacker who already holds System privilege on the device can use it to escalate privileges further.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["android","infrastructure","mediatek"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-02T03:17:34+00:00","first_seen_at":"2026-11-02T03:31:25+00:00","triaged_at":"2026-11-02T03:32:22+00:00","updated_at":"2026-11-02T03:32:22+00:00","category":"infrastructure","confidence":0.4,"triage":{"at":"2026-11-02T03:32:22Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"local","title":"AFE: double free memory corruption lets a System-privilege process escalate","impact":"medium","summary":"A double free in the afe component can corrupt memory. An attacker who already holds System privilege on the device can use it to escalate privileges further.","audience":"everyone","category":"infrastructure","nicknames":[],"who_cares":["android","mediatek"],"confidence":0.4,"fix_status":"unknown","needs_auth":"yes","worst_case":"Attacker with System privilege escalates to deeper local control of device","analyst_note":"Identify which devices and Android security bulletin ship afe Patch ID ALPS11431412 and the fixed build; check NVD entry for version details.","how_to_check":"- unknown","plain_action":"","needs_analyst":true,"not_affected_if":[],"who_is_affected":"The sources name only the afe component and a Patch ID (ALPS11431412); they do not say which devices or firmware builds ship it. Exploitation requires an attacker who already has System privilege, so the risk is limited to devices where such access has already been gained. unknown","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000619,"input_tokens":4089,"output_tokens":420,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-20573':15A,18A '-9923':91C 'actor':71C 'afe':1A,27B,49C 'alps11431412':87C 'alreadi':35B,73C 'android':19B 'attack':33B 'compon':28B 'corrupt':5A,30B,55C 'could':61C 'cve':13A,16A 'devic':41B 'doubl':2A,23B,58C 'due':56C 'escal':12A,46B,65C 'exploit':84C 'free':3A,24B,59C 'hold':36B 'id':86C,89C 'infrastructur':20B 'interact':79C 'issu':88C 'lead':62C 'let':6A 'local':64C 'malici':70C 'mediatek':21B 'memori':4A,31B,54C 'msv':90C 'need':82C 'obtain':74C 'patch':85C 'possibl':53C 'privileg':10A,38B,47B,67C,77C 'process':11A 'system':9A,37B,76C 'system-privileg':8A 'use':43B 'user':78C","nicknames":[],"mitigations":[],"who_affected":"The sources name only the afe component and a Patch ID (ALPS11431412); they do not say which devices or firmware builds ship it. Exploitation requires an attacker who already has System privilege, so the risk is limited to devices where such access has already been gained. unknown","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"everyone","plain_action":null,"pkeys":[],"ptokens":[],"labels":["android","infrastructure","mediatek","unknown"],"first_public_at":"2026-11-02T03:17:34+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-20573","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20573","severity":null,"published_at":"2026-11-02T03:17:34+00:00","modified_at":"2026-11-02T03:17:34+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"}