{"id":"CVE-2026-58879","kind":"vulnerability","aliases":["CVE-2026-58879"],"related":[],"title":"Descramble of multiple files allows out-of-bounds write, local privilege escalation","description":"In descramble of multiple files, there is a possible out-of-bounds write due to improper casting. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.","summary":"A flaw in how multiple files are descrambled uses an improper cast that allows an out-of-bounds write. An attacker with local access can escalate privileges without extra execution rights.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["local-escalation","other"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-02T20:17:49+00:00","first_seen_at":"2026-11-02T20:35:32+00:00","triaged_at":"2026-11-02T20:38:51+00:00","updated_at":"2026-11-02T20:38:51+00:00","category":"other","confidence":0.3,"triage":{"at":"2026-11-02T20:38:51Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Descramble of multiple files allows out-of-bounds write, local privilege escalation","impact":"high","summary":"A flaw in how multiple files are descrambled uses an improper cast that allows an out-of-bounds write. An attacker with local access can escalate privileges without extra execution rights.","audience":"businesses","category":"other","nicknames":[],"who_cares":["local-escalation"],"confidence":0.3,"fix_status":"unknown","needs_auth":"unknown","worst_case":"local user gains elevated privileges on the affected system","analyst_note":"Identify the affected product and component from the NVD entry (https://nvd.nist.gov/vuln/detail/CVE-2026-58879) and find the vendor advisory and fixed 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":0.000587,"input_tokens":4078,"output_tokens":358,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':15A,18A '-58879':16A,19A 'access':47B 'addit':83C 'allow':5A,36B 'attack':44B 'bound':9A,41B,67C 'cast':34B,72C 'could':74C 'cve':14A,17A 'descrambl':1A,30B,56C 'due':69C 'escal':13A,22B,49B,78C 'execut':53B,84C 'exploit':93C 'extra':52B 'file':4A,28B,59C 'flaw':24B 'improp':33B,71C 'interact':88C 'lead':75C 'local':11A,21B,46B,77C 'local-escal':20B 'multipl':3A,27B,58C 'need':86C,91C 'out-of-bound':6A,38B,64C 'possibl':63C 'privileg':12A,50B,80C,85C 'right':54B 'use':31B 'user':87C 'without':51B 'write':10A,42B,68C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["localescalation","other","unknown"],"first_public_at":"2026-11-02T20:17:49+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-58879","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58879","severity":null,"published_at":"2026-11-02T20:17:49+00:00","modified_at":"2026-11-02T20:17:49+00:00","first_seen_at":"2026-11-02T20:35:32+00:00","fetched_at":"2026-11-02T20:35:32+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"}