{"id":"CVE-2011-4723","kind":"vulnerability","aliases":["CVE-2011-4723"],"related":[],"title":"dlink dir-300 firmware: The D-Link DIR-300 router stores cleartext passwords, which allows context-dependent attackers to obtain sensitive…","description":"The D-Link DIR-300 router stores cleartext passwords, which allows context-dependent attackers to obtain sensitive information.\n\nCISA required action: The impacted product is end-of-life and should be disconnected if still in use.","summary":"The D-Link DIR-300 router stores passwords in cleartext on the device. An attacker who can reach its stored configuration can read the passwords and use them.","severity":"high","cvss":6.8,"epss":0.03064,"exploited":true,"exploited_at":"2022-09-08T00:00:00+00:00","products":[{"name":"D-Link DIR-300 Router","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"dlink dir-300 firmware","fixed":[],"affected":"","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["d-link","dir-300","exploited","home-router","infrastructure","self-hosted"],"not_affected_if":["no-dir-300-in-use"],"how_to_check":"Identify any D-Link DIR-300 routers on your network, e.g. by model label or admin interface.","fix":"The product is end-of-life and CISA says to disconnect it if still in use. No patched version is given in the sources.","status":"open","published_at":"2011-12-20T11:55:08+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:10:45+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T21:10:45Z","model":"claude-haiku-5-5","output":{"fix":"The product is end-of-life and CISA says to disconnect it if still in use. No patched version is given in the sources.","reach":"unknown","impact":"medium","summary":"The D-Link DIR-300 router stores passwords in cleartext on the device. An attacker who can reach its stored configuration can read the passwords and use them.","category":"infrastructure","who_cares":["d-link","dir-300","self-hosted","home-router"],"confidence":0.6,"needs_auth":"unknown","worst_case":"Attacker reads stored cleartext passwords from the router","analyst_note":"Confirm the attack vector and whether a firmware fix or mitigation exists; check the CISA KEV entry and NVD record for CVE-2011-4723.","how_to_check":"Identify any D-Link DIR-300 routers on your network, e.g. by model label or admin interface.\nunknown","needs_analyst":true,"not_affected_if":["no-dir-300-in-use"],"user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000469,"input_tokens":2847,"output_tokens":368,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2011':25A,28A '-300':3A,10A,34A,38A,44B,58B,86C '-4723':26A,29A 'action':103C 'allow':16A,92C 'attack':20A,68B,96C 'cisa':101C 'cleartext':13A,63B,89C 'configur':74B 'context':18A,94C 'context-depend':17A,93C 'cve':24A,27A 'd':7A,31A,41B,55B,83C 'd-link':6A,30A,40B,54B,82C 'depend':19A,95C 'devic':66B 'dir':2A,9A,33A,37A,43B,57B,85C 'disconnect':115C 'dlink':1A,36A 'end':109C 'end-of-lif':108C 'exploit':45B 'firmwar':4A 'firmware':39A 'home':47B 'home-rout':46B 'host':52B 'impact':105C 'inform':100C 'infrastructur':49B 'life':111C 'link':8A,32A,42B,56B,84C 'obtain':22A,98C 'password':14A,61B,78B,90C 'product':106C 'reach':71B 'read':76B 'requir':102C 'router':11A,35A,48B,59B,87C 'self':51B 'self-host':50B 'sensit':23A,99C 'still':117C 'store':12A,60B,73B,88C 'use':80B,119C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2011-12-20T11:55:08+00:00","kev":{"dateAdded":"2022-09-08","dueDate":"2022-09-29","requiredAction":"The impacted product is end-of-life and should be disconnected if still in use.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","cvss_by":"134c704f-9b21-4f2e-91b3-4a467353bcc0","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2011-4723","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2011-4723","severity":null,"published_at":"2022-09-08T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T13:39:31+00:00","note":null},{"source":"epss","external_id":"CVE-2011-4723","url":"https://api.first.org/data/v1/epss?cve=CVE-2011-4723","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-23T19:13:45+00:00","fetched_at":"2026-10-23T19:13:45+00:00","note":null},{"source":"nvd","external_id":"CVE-2011-4723","url":"https://nvd.nist.gov/vuln/detail/CVE-2011-4723","severity":null,"published_at":"2011-12-20T11:55:08+00:00","modified_at":"2026-06-16T23:35:18+00:00","first_seen_at":"2026-10-23T22:29:04+00:00","fetched_at":"2026-10-23T22:29:04+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"}