{"id":"CVE-2020-15069","kind":"vulnerability","aliases":["CVE-2020-15069"],"related":[],"title":"sophos xg firewall firmware: Sophos XG Firewall 17.x through v17.5 MR12 allows a Buffer Overflow and remote code execution via the HTTP/S…","description":"Sophos XG Firewall contains a buffer overflow vulnerability that allows for remote code execution via the \"HTTP/S bookmark\" feature.\n\nCISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","summary":"Sophos XG Firewall has a buffer overflow in its HTTP/S bookmark feature that allows remote code execution. CISA lists it in the Known Exploited Vulnerabilities catalog, so attacks in the wild are confirmed.","severity":"critical","cvss":9.8,"epss":null,"exploited":true,"exploited_at":"2025-02-06T00:00:00+00:00","products":[{"name":"Sophos XG Firewall","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"sophos xg firewall firmware","fixed":["17.5"],"affected":">= 17.0, < 17.5","ecosystem":"vendor"},{"name":"sophos xg firewall firmware","fixed":[],"affected":"= 17.5","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","infrastructure","self-hosted","sophos","xg-firewall"],"not_affected_if":["unknown"],"how_to_check":"Check the firewall firmware version against Sophos advisories; the sources do not list affected or fixed versions.\nConfirm whether the HTTP/S bookmark feature is in use.","fix":"Apply the mitigation or fixed firmware per the vendor instructions; the sources do not name a version.\nIf no mitigation is available, discontinue use of the product as CISA requires.","status":"open","published_at":"2020-06-29T18:15:12+00:00","first_seen_at":"2026-10-23T19:11:51+00:00","triaged_at":"2026-10-23T20:52:33+00:00","updated_at":"2026-10-23T22:29:05+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-23T20:52:33Z","model":"claude-haiku-5-5","output":{"fix":"Apply the mitigation or fixed firmware per the vendor instructions; the sources do not name a version.\nIf no mitigation is available, discontinue use of the product as CISA requires.","reach":"internet","impact":"high","summary":"Sophos XG Firewall has a buffer overflow in its HTTP/S bookmark feature that allows remote code execution. CISA lists it in the Known Exploited Vulnerabilities catalog, so attacks in the wild are confirmed.","category":"infrastructure","who_cares":["sophos","xg-firewall","self-hosted"],"confidence":0.6,"needs_auth":"unknown","worst_case":"Remote attacker runs code on the firewall appliance","analyst_note":"Find the Sophos advisory for CVE-2020-15069 to get affected and fixed versions and the HTTP/S bookmark mitigation steps; the KEV entry alone gives no versions.","how_to_check":"Check the firewall firmware version against Sophos advisories; the sources do not list affected or fixed versions.\nConfirm whether the HTTP/S bookmark feature is in use.\nunknown","needs_analyst":true,"not_affected_if":["unknown"],"user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000488,"input_tokens":2625,"output_tokens":451,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-15069':26A,29A '-2020':25A,28A '17':8A 'action':104C 'allow':13A,63B,92C 'appli':105C 'attack':77B 'bookmark':60B,100C 'buffer':15A,55B,88C 'catalog':75B 'cisa':67B,102C 'code':19A,65B,95C 'confirm':82B 'contain':86C 'cve':24A,27A 'discontinu':111C 'execut':20A,66B,96C 'exploit':41B,73B 'featur':61B,101C 'firewal':3A,7A,49B,52B,85C 'firewall':32A,35A,39A 'firmwar':4A 'firmware':36A,40A 'host':45B 'http/s':23A,59B,99C 'infrastructur':42B 'instruct':109C 'known':72B 'list':68B 'mitig':106C,117C 'mr12':12A 'overflow':16A,56B,89C 'per':107C 'product':115C 'remot':18A,64B,94C 'requir':103C 'self':44B 'self-host':43B 'sopho':1A,5A,46B,50B,83C 'sophos':30A,33A,37A 'unavail':119C 'use':112C 'v17.5':11A 'vendor':108C 'via':21A,97C 'vulner':74B,90C 'wild':80B 'x':9A 'xg':2A,6A,31A,34A,38A,48B,51B,84C 'xg-firewal':47B","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2020-06-29T18:15:12+00:00","kev":{"dateAdded":"2025-02-06","dueDate":"2025-02-27","requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","knownRansomwareCampaignUse":"Unknown"},"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-2020-15069","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2020-15069","severity":null,"published_at":"2025-02-06T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:51+00:00","fetched_at":"2026-10-25T11:39:14+00:00","note":null},{"source":"nvd","external_id":"CVE-2020-15069","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-15069","severity":null,"published_at":"2020-06-29T18:15:12+00:00","modified_at":"2026-06-17T02:55:59+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"}