{"id":"CVE-2021-38163","kind":"vulnerability","aliases":["CVE-2021-38163"],"related":[],"title":"SAP NetWeaver (Visual Composer 7.0 RT) versions - 7.30, 7.31, 7.40, 7.50, without restriction, an attacker…","description":"SAP NetWeaver (Visual Composer 7.0 RT) versions - 7.30, 7.31, 7.40, 7.50, without restriction, an attacker authenticated as a non-administrative user can upload a malicious file over a network and trigger its processing, which is capable of running operating system commands with the privilege of the Java Server process. These commands can be used to read or modify any information on the server or shut the server down making it unavailable.","summary":"SAP NetWeaver has an unrestricted file upload flaw that lets an attacker upload arbitrary files to the server. CISA lists it as actively exploited in the wild.","severity":"critical","cvss":9.9,"epss":0.36898,"exploited":true,"exploited_at":"2022-06-09T00:00:00+00:00","products":[{"name":"SAP NetWeaver","fixed":[],"affected":"","ecosystem":"vendor"},{"name":"sap netweaver","fixed":[],"affected":"= 7.30","ecosystem":"vendor"},{"name":"sap netweaver","fixed":[],"affected":"= 7.31","ecosystem":"vendor"},{"name":"sap netweaver","fixed":[],"affected":"= 7.40","ecosystem":"vendor"},{"name":"sap netweaver","fixed":[],"affected":"= 7.50","ecosystem":"vendor"}],"ecosystems":["vendor"],"tags":["exploited","netweaver","package","sap","self-hosted"],"not_affected_if":["managed-hosting"],"how_to_check":null,"fix":"Apply the SAP security updates for CVE-2021-38163 per the vendor instructions (CISA required action); exact patch level is unknown from the sources.","status":"open","published_at":"2021-09-14T12:15:10+00:00","first_seen_at":"2026-10-23T19:11:52+00:00","triaged_at":"2026-10-23T21:12:33+00:00","updated_at":"2026-10-23T22:29:04+00:00","category":"package","confidence":0.5,"triage":{"at":"2026-10-23T21:12:33Z","model":"claude-haiku-5-5","output":{"fix":"Apply the SAP security updates for CVE-2021-38163 per the vendor instructions (CISA required action); exact patch level is unknown from the sources.","reach":"internet","impact":"high","summary":"SAP NetWeaver has an unrestricted file upload flaw that lets an attacker upload arbitrary files to the server. CISA lists it as actively exploited in the wild.","category":"package","who_cares":["sap","netweaver","self-hosted"],"confidence":0.5,"needs_auth":"unknown","worst_case":"Attacker uploads files to the server, potentially enabling code execution.","analyst_note":"Find the SAP Note and affected NetWeaver versions/patch levels, and a detection method, via the SAP security patch advisory and the CISA KEV entry.","how_to_check":"unknown","needs_analyst":true,"not_affected_if":["managed-hosting"],"user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000453,"input_tokens":2812,"output_tokens":344,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2021':17A,20A '-38163':18A,21A '7.0':5A,70C '7.30':8A,73C '7.31':9A,74C '7.40':10A,75C '7.50':11A,76C 'activ':61B 'administr':86C 'arbitrari':52B 'attack':15A,50B,80C 'authent':81C 'capabl':102C 'cisa':57B 'command':107C,117C 'compos':4A,69C 'cve':16A,19A 'exploit':32B,62B 'file':44B,53B,92C 'flaw':46B 'host':38B 'inform':126C 'java':113C 'let':48B 'list':58B 'make':135C 'malici':91C 'modifi':124C 'netweav':2A,33B,40B,67C 'netweaver':23A,25A,27A,29A,31A 'network':95C 'non':85C 'non-administr':84C 'oper':105C 'packag':34B 'privileg':110C 'process':99C,115C 'read':122C 'restrict':13A,78C 'rt':6A,71C 'run':104C 'sap':1A,22A,24A,26A,28A,30A,35B,39B,66C 'self':37B 'self-host':36B 'server':56B,114C,129C,133C 'shut':131C 'system':106C 'trigger':97C 'unavail':137C 'unrestrict':43B 'upload':45B,51B,89C 'use':120C 'user':87C 'version':7A,72C 'visual':3A,68C 'wild':65B 'without':12A,77C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2021-09-14T12:15:10+00:00","kev":{"dateAdded":"2022-06-09","dueDate":"2022-06-30","requiredAction":"Apply updates per vendor instructions.","knownRansomwareCampaignUse":"Unknown"},"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cvss_by":"cna@sap.com","poc_count":0,"sources":[{"source":"kev","external_id":"CVE-2021-38163","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-38163","severity":null,"published_at":"2022-06-09T00:00:00+00:00","modified_at":null,"first_seen_at":"2026-10-23T19:11:52+00:00","fetched_at":"2026-10-25T12:39:23+00:00","note":null},{"source":"epss","external_id":"CVE-2021-38163","url":"https://api.first.org/data/v1/epss?cve=CVE-2021-38163","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-2021-38163","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-38163","severity":null,"published_at":"2021-09-14T12:15:10+00:00","modified_at":"2026-06-17T04:01:38+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"}