{"id":"CVE-2026-76408","kind":"vulnerability","aliases":["CVE-2026-76408"],"related":[],"title":"Cisco: hardening release fixes internal flaws in resource lifetime handling","description":"As part of Cisco's ongoing commitment to proactive security and product quality, Cisco has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76408 are related to improper control of a resource through its lifetime and are grouped under the Common Weakness Enumeration (CWE) CWE-664.","summary":"Cisco published a software hardening release after an internal security review that found several flaws grouped under CWE-664, improper control of a resource through its lifetime. The sources do not name the affected product or what an attacker can gain from exploiting these issues.","severity":"unknown","cvss":null,"epss":0.0017,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["cisco","infrastructure"],"not_affected_if":[],"how_to_check":null,"fix":"- Move to the software hardening release Cisco published for the affected product, version unknown from sources","status":"open","published_at":"2026-10-21T23:17:29+00:00","first_seen_at":"2026-10-23T21:57:29+00:00","triaged_at":"2026-10-25T05:00:41+00:00","updated_at":"2026-10-25T05:00:41+00:00","category":"infrastructure","confidence":0.3,"triage":{"at":"2026-10-25T05:00:41Z","model":"claude-haiku-5-5","output":{"fix":"- Move to the software hardening release Cisco published for the affected product, version unknown from sources","reach":"unknown","title":"Cisco: hardening release fixes internal flaws in resource lifetime handling","impact":"medium","summary":"Cisco published a software hardening release after an internal security review that found several flaws grouped under CWE-664, improper control of a resource through its lifetime. The sources do not name the affected product or what an attacker can gain from exploiting these issues.","category":"infrastructure","nicknames":[],"who_cares":["cisco"],"confidence":0.3,"needs_auth":"unknown","worst_case":"unknown","analyst_note":"Find the Cisco advisory and affected product list for CVE-2026-76408 and the exploit prerequisites from the NVD record.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":[],"who_is_affected":"unknown","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000516,"input_tokens":3395,"output_tokens":353,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':12A,15A,104C '-664':37B,127C '-76408':13A,16A,105C 'address':94C 'affect':52B 'attack':57B 'cisco':1A,17B,19B,67C,77C 'commit':70C 'common':122C 'comprehens':81C 'conduct':79C 'control':39B,110C 'cve':11A,14A,103C 'cwe':36B,125C,126C 'discov':97C 'enumer':124C 'exploit':61B 'fix':4A 'flaw':6A,33B 'found':31B 'gain':59B 'group':34B,119C 'handl':10A 'harden':2A,23B,91C 'improp':38B,109C 'infrastructur':18B 'intern':5A,27B,82C,96C 'issu':63B 'lifetim':9A,45B,116C 'multipl':95C 'name':50B 'ongo':69C 'part':65C 'proactiv':72C 'product':53B,75C 'publish':20B 'qualiti':76C 'relat':107C 'releas':3A,24B,92C 'resourc':8A,42B,113C 'result':87C 'review':29B,84C,86C 'secur':28B,73C,83C 'sever':32B 'softwar':22B,90C 'sourc':47B 'track':101C 'vulner':98C,100C 'weak':123C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-21T23:17:29+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-76408","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76408","severity":null,"published_at":"2026-10-21T23:17:29+00:00","modified_at":"2026-10-22T16:57:10+00:00","first_seen_at":"2026-10-23T21:57:29+00:00","fetched_at":"2026-10-23T22:29:02+00:00","note":null},{"source":"epss","external_id":"CVE-2026-76408","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-76408","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-24T07:15:52+00:00","fetched_at":"2026-10-24T07:15:52+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"}