{"id":"CVE-2026-48174","kind":"vulnerability","aliases":["CVE-2026-48174"],"related":[],"title":"NR RRC component: pre-authentication messages cause data abort and denial of service","description":"In the NR RRC component, improper handling of messages before authentication triggers a data abort, which leads to a denial‑of‑service condition.","summary":"The NR RRC component, the 5G radio control protocol handler, mishandles messages received before authentication, causing a data abort. An attacker can crash the component and cause a denial of service.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["5g","infrastructure","ran","telecom"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-05T03:17:27+00:00","first_seen_at":"2026-11-05T03:31:43+00:00","triaged_at":"2026-11-05T03:33:48+00:00","updated_at":"2026-11-05T03:33:48+00:00","category":"infrastructure","confidence":0.4,"triage":{"at":"2026-11-05T03:33:48Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"NR RRC component: pre-authentication messages cause data abort and denial of service","impact":"low","summary":"The NR RRC component, the 5G radio control protocol handler, mishandles messages received before authentication, causing a data abort. An attacker can crash the component and cause a denial of service.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["5g","ran","telecom"],"confidence":0.4,"fix_status":"unknown","needs_auth":"no","worst_case":"Radio control component crashes, causing denial of service","analyst_note":"Identify the affected NR RRC implementation and vendor, the fixed versions, and the NVD CNA advisory for CVE-2026-48174.","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":0.000591,"input_tokens":4158,"output_tokens":351,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':16A,19A '-48174':17A,20A '5g':21B,30B 'abort':10A,43B,70C 'attack':45B 'authent':6A,39B,66C 'caus':8A,40B,51B 'compon':3A,28B,49B,60C 'condit':78C 'control':32B 'crash':47B 'cve':15A,18A 'data':9A,42B,69C 'denial':12A,53B,75C 'handl':62C 'handler':34B 'improp':61C 'infrastructur':22B 'lead':72C 'messag':7A,36B,64C 'mishandl':35B 'nr':1A,26B,58C 'pre':5A 'pre-authent':4A 'protocol':33B 'radio':31B 'ran':23B 'receiv':37B 'rrc':2A,27B,59C 'servic':14A,55B,77C 'telecom':24B 'trigger':67C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["5g","infrastructure","ran","telecom","unknown"],"campaign_type":null,"first_public_at":"2026-11-05T03:17:27+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-48174","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-48174","severity":null,"published_at":"2026-11-05T03:17:27+00:00","modified_at":"2026-11-05T03:17:27+00:00","first_seen_at":"2026-11-05T03:31:43+00:00","fetched_at":"2026-11-05T03:31:43+00:00","note":null}],"documents":[],"exploit_sources":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}