{"id":"CVE-2024-53704","kind":"vulnerability","aliases":["CVE-2024-53704"],"related":[],"title":"sonicwall sonicos: An Improper Authentication vulnerability in the SSLVPN authentication mechanism allows a remote attacker to bypass…","description":"SonicWall SonicOS contains an improper authentication vulnerability in the SSLVPN authentication mechanism that allows a remote attacker to bypass authentication.\n\nCISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","summary":"SonicWall SonicOS SSLVPN has an authentication bypass flaw that lets a remote attacker get past login. It is listed in CISA's known-exploited catalog and tagged as used in ransomware campaigns.","severity":"critical","cvss":9.8,"epss":null,"exploited":true,"exploited_at":"2025-02-18T00:00:00+00:00","products":[{"name":"SonicWall SonicOS","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"sonicwall sonicos","fixed":[],"affected":">= 7.1.1-7040, <= 7.1.1-7058","ecosystem":"vendor"},{"name":"sonicwall sonicos","fixed":[],"affected":"= 7.1.2-7019","ecosystem":"vendor"},{"name":"sonicwall sonicos","fixed":[],"affected":"= 8.0.0-8035","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","firewall","infrastructure","ransomware","sonicos","sonicwall","sslvpn"],"not_affected_if":["no-sonicos-sslvpn"],"how_to_check":null,"fix":"Apply the mitigations per SonicWall vendor instructions, or discontinue use of the SSLVPN feature if mitigations are unavailable (per CISA required action).","status":"open","published_at":"2025-01-09T07:15:27+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:52:24+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T20:52:24Z","model":"claude-haiku-5-5","output":{"fix":"Apply the mitigations per SonicWall vendor instructions, or discontinue use of the SSLVPN feature if mitigations are unavailable (per CISA required action).","reach":"internet","impact":"high","summary":"SonicWall SonicOS SSLVPN has an authentication bypass flaw that lets a remote attacker get past login. It is listed in CISA's known-exploited catalog and tagged as used in ransomware campaigns.","category":"infrastructure","who_cares":["sonicwall","sonicos","sslvpn","firewall"],"confidence":0.6,"needs_auth":"no","worst_case":"Remote attacker bypasses VPN login and reaches internal network","analyst_note":"Find the affected SonicOS versions, fixed versions and vendor mitigation steps from SonicWall's advisory for CVE-2024-53704; sources did not list them.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["no-sonicos-sslvpn"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000455,"input_tokens":2640,"output_tokens":382,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2024':19A,22A '-53704':20A,23A 'action':94C 'allow':12A,85C 'appli':95C 'attack':15A,51B,88C 'authent':5A,10A,44B,77C,82C,91C 'bypass':17A,45B,90C 'campaign':71B 'catalog':64B 'cisa':59B,92C 'contain':74C 'cve':18A,21A 'discontinu':101C 'exploit':32B,63B 'firewal':33B 'flaw':46B 'get':52B 'improp':4A,76C 'infrastructur':34B 'instruct':99C 'known':62B 'known-exploit':61B 'let':48B 'list':57B 'login':54B 'mechan':11A,83C 'mitig':96C,107C 'past':53B 'per':97C 'product':105C 'ransomwar':35B,70B 'remot':14A,50B,87C 'requir':93C 'sonico':2A,36B,40B,73C 'sonicos':25A,27A,29A,31A 'sonicwal':1A,37B,39B,72C 'sonicwall':24A,26A,28A,30A 'sslvpn':9A,38B,41B,81C 'tag':66B 'unavail':109C 'use':68B,102C 'vendor':98C 'vulner':6A,78C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2025-01-09T07:15:27+00:00","kev":{"dateAdded":"2025-02-18","dueDate":"2025-03-11","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Known"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"nvd@nist.gov","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2024-53704","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2024-53704","severity":null,"published_at":"2025-02-18T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T12:39:22+00:00","note":null},{"source":"nvd","external_id":"CVE-2024-53704","url":"https://nvd.nist.gov/vuln/detail/CVE-2024-53704","severity":null,"published_at":"2025-01-09T07:15:27+00:00","modified_at":"2026-08-04T05:16:31+00:00","first_seen_at":"2026-10-23T22:29:05+00:00","fetched_at":"2026-10-23T22:29:05+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"}