{"id":"CVE-2026-20558","kind":"vulnerability","aliases":["CVE-2026-20558"],"related":[],"title":"GPU pdma driver: use-after-free lets local user escalate privileges","description":"In GPU pdma, there is a possible escalation of privilege due to use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: ALPS11365070; Issue ID: MSV-9547.","summary":"A use-after-free bug in the GPU pdma component can be triggered locally to escalate privileges. The description says no additional execution privileges are needed and no user interaction is required.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["android","gpu-driver","infrastructure","mediatek"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-02T03:17:32+00:00","first_seen_at":"2026-11-02T03:31:24+00:00","triaged_at":"2026-11-02T03:32:34+00:00","updated_at":"2026-11-02T03:32:34+00:00","category":"infrastructure","confidence":0.4,"triage":{"at":"2026-11-02T03:32:34Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"GPU pdma driver: use-after-free lets local user escalate privileges","impact":"high","summary":"A use-after-free bug in the GPU pdma component can be triggered locally to escalate privileges. The description says no additional execution privileges are needed and no user interaction is required.","audience":"everyone","category":"infrastructure","nicknames":[],"who_cares":["mediatek","android","gpu-driver"],"confidence":0.4,"fix_status":"unknown","needs_auth":"unknown","worst_case":"local user gains elevated privileges on the device","analyst_note":"Identify affected device chipsets and patched Android security bulletin level for Patch ID ALPS11365070 (MediaTek); sources give no versions.","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":"high"},"cost_usd":0.000585,"input_tokens":4097,"output_tokens":351,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':14A,17A '-20558':15A,18A '-9547':100C 'addit':47B,83C 'alps11365070':96C 'android':19B 'bug':30B 'compon':35B 'could':74C 'cve':13A,16A 'descript':44B 'driver':3A,22B 'due':68C 'escal':11A,41B,65C,78C 'execut':48B,84C 'exploit':93C 'free':7A,29B,72C 'gpu':1A,21B,33B,59C 'gpu-driv':20B 'id':95C,98C 'infrastructur':23B 'interact':55B,88C 'issu':97C 'lead':75C 'let':8A 'local':9A,39B,77C 'mediatek':24B 'msv':99C 'need':51B,86C,91C 'patch':94C 'pdma':2A,34B,60C 'possibl':64C 'privileg':12A,42B,49B,67C,80C,85C 'requir':57B 'say':45B 'trigger':38B 'use':5A,27B,70C 'use-after-fre':4A,26B 'user':10A,54B,87C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"unknown","audience":"everyone","plain_action":null,"pkeys":[],"ptokens":[],"labels":["android","gpudriver","infrastructure","mediatek","unknown"],"first_public_at":"2026-11-02T03:17:32+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-20558","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-20558","severity":null,"published_at":"2026-11-02T03:17:32+00:00","modified_at":"2026-11-02T03:17:32+00:00","first_seen_at":"2026-11-02T03:31:24+00:00","fetched_at":"2026-11-02T03:31:24+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"}