{"id":"CVE-2026-120715","kind":"vulnerability","aliases":["CVE-2026-120715"],"related":[],"title":"Devolutions Server: AD credential check leaks service account NetNTLMv2 hash","description":"Server-side request forgery in the Active Directory credential validation in Devolutions Server 2026.3.12.0 and earlier allows an authenticated low-privileged user to capture the NetNTLMv2 hash of the DVLS service account via an attacker-controlled domain name in the request.","summary":"Devolutions Server 2026.3.12.0 and earlier has a server-side request forgery flaw in its Active Directory credential validation. An authenticated low-privileged user can make the server send an attacker-controlled domain name, capturing the NetNTLMv2 hash of the DVLS service account.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["active-directory","devolutions-server","infrastructure","windows"],"not_affected_if":["no-ad-validation","patched-version"],"how_to_check":"- Check the installed Devolutions Server version against the fixed release.","fix":null,"status":"open","published_at":"2026-11-03T21:17:04+00:00","first_seen_at":"2026-11-03T21:19:08+00:00","triaged_at":"2026-11-03T21:27:41+00:00","updated_at":"2026-11-03T21:27:41+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-11-03T21:27:41Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"network","title":"Devolutions Server: AD credential check leaks service account NetNTLMv2 hash","impact":"high","summary":"Devolutions Server 2026.3.12.0 and earlier has a server-side request forgery flaw in its Active Directory credential validation. An authenticated low-privileged user can make the server send an attacker-controlled domain name, capturing the NetNTLMv2 hash of the DVLS service account.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["devolutions-server","active-directory","windows"],"confidence":0.6,"fix_status":"unknown","needs_auth":"yes","worst_case":"Service account NetNTLMv2 hash captured, enabling offline cracking or relay","analyst_note":"Confirm the fixed version and any vendor advisory for Devolutions Server; the NVD entry does not state a fix, and the description does not say whether the flaw is reachable only from inside the network.","how_to_check":"- Check the installed Devolutions Server version against the fixed release.\n- unknown","plain_action":"","needs_analyst":true,"not_affected_if":["patched-version","no-ad-validation"],"who_is_affected":"Organizations running Devolutions Server 2026.3.12.0 or earlier that use Active Directory credential validation. Any low-privileged authenticated user can trigger the flaw, so the exposure is wider than administrators. Instances on a later version, or without Active Directory validation in use, are not described as affected.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000691,"input_tokens":4112,"output_tokens":559,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-120715':13A,16A '-2026':12A,15A '2026.3.12.0':27B,84C 'account':8A,69B,103C 'activ':18B,40B,77C 'active-directori':17B 'ad':3A 'allow':87C 'attack':57B,107C 'attacker-control':56B,106C 'authent':45B,89C 'captur':61B,95C 'check':5A 'control':58B,108C 'credenti':4A,42B,79C 'cve':11A,14A 'devolut':1A,21B,25B,82C 'devolutions-serv':20B 'directori':19B,41B,78C 'domain':59B,109C 'dvls':67B,101C 'earlier':29B,86C 'flaw':37B 'forgeri':36B,74C 'hash':10A,64B,98C 'infrastructur':23B 'leak':6A 'low':47B,91C 'low-privileg':46B,90C 'make':51B 'name':60B,110C 'netntlmv2':9A,63B,97C 'privileg':48B,92C 'request':35B,73C,113C 'send':54B 'server':2A,22B,26B,33B,53B,71C,83C 'server-sid':32B,70C 'servic':7A,68B,102C 'side':34B,72C 'user':49B,93C 'valid':43B,80C 'via':104C 'window':24B","nicknames":[],"mitigations":[],"who_affected":"Organizations running Devolutions Server 2026.3.12.0 or earlier that use Active Directory credential validation. Any low-privileged authenticated user can trigger the flaw, so the exposure is wider than administrators. Instances on a later version, or without Active Directory validation in use, are not described as affected.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["activedirectory","devolutionsserver","infrastructure","medium","windows"],"campaign_type":null,"first_public_at":"2026-11-03T21:17:04+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-120715","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-120715","severity":null,"published_at":"2026-11-03T21:17:04+00:00","modified_at":"2026-11-03T21:17:04+00:00","first_seen_at":"2026-11-03T21:19:08+00:00","fetched_at":"2026-11-03T21:19:08+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"}