{"id":"CVE-2026-76935","kind":"vulnerability","aliases":["CVE-2026-76935"],"related":[],"title":"JP1 Automatic Job Management System 3: stack buffer overflow enables code execution","description":"Stack-based Buffer Overflow Vulnerability in JP1/Automatic Job Management System 3.\n\n\nThis issue affects JP1/Automatic Job Management System 3 - Manager: from 10-00 before 13-50-31.","summary":"JP1/Automatic Job Management System 3 Manager has a stack-based buffer overflow, a memory corruption flaw that can let an attacker crash the service or run code on the server. The sources list affected Manager versions from 10-00 before 13-50-31 and a CVSS score of 9.4.","severity":"critical","cvss":9.4,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["enterprise","hitachi","job-scheduling","jp1","other","windows"],"not_affected_if":["version-13-50-31-or-later"],"how_to_check":"- Check the installed JP1/AJS3 Manager version against the affected range 10-00 through 13-50-30 (`unknown` for the exact command; consult the Hitachi product documentation)\n- Confirm whether the Manager service is reachable from untrusted networks (unknown from the sources)","fix":"- Upgrade JP1/Automatic Job Management System 3 Manager to 13-50-31 or later (per the vendor advisory; confirm on the Hitachi JP1 security page)","status":"open","published_at":"2026-10-27T10:16:55+00:00","first_seen_at":"2026-10-27T10:31:02+00:00","triaged_at":"2026-10-27T10:31:48+00:00","updated_at":"2026-10-27T10:31:48+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-27T10:31:48Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade JP1/Automatic Job Management System 3 Manager to 13-50-31 or later (per the vendor advisory; confirm on the Hitachi JP1 security page)","reach":"unknown","title":"JP1 Automatic Job Management System 3: stack buffer overflow enables code execution","impact":"high","summary":"JP1/Automatic Job Management System 3 Manager has a stack-based buffer overflow, a memory corruption flaw that can let an attacker crash the service or run code on the server. The sources list affected Manager versions from 10-00 before 13-50-31 and a CVSS score of 9.4.","category":"other","nicknames":[],"who_cares":["jp1","hitachi","job-scheduling","enterprise","windows"],"confidence":0.6,"needs_auth":"unknown","worst_case":"Attacker runs code on the job scheduler server","analyst_note":"Check the Hitachi JP1 vendor advisory for the fixed version, required privileges, network reach and any OS scope; the NVD entry gave no detail beyond the affected range.","how_to_check":"- Check the installed JP1/AJS3 Manager version against the affected range 10-00 through 13-50-30 (`unknown` for the exact command; consult the Hitachi product documentation)\n- Confirm whether the Manager service is reachable from untrusted networks (unknown from the sources)","needs_analyst":true,"not_affected_if":["version-13-50-31-or-later"],"who_is_affected":"Organizations running the JP1/Automatic Job Management System 3 Manager in the affected range 10-00 before 13-50-31. Systems running only other JP1 components or versions at or above 13-50-31 are not listed as affected. The sources do not say what network exposure or configuration is needed to trigger the flaw.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.000658,"input_tokens":3292,"output_tokens":658,"severity_before":"critical"},"analyst_status":null,"analyst_note":null,"search":"'-00':66B,100C '-2026':14A,17A '-31':70B,104C '-50':69B,103C '-76935':15A,18A '10':65B,99C '13':68B,102C '3':6A,31B,88C,96C '9.4':76B 'affect':61B,91C 'attack':48B 'automat':2A 'base':37B,79C 'buffer':8A,38B,80C 'code':11A,54B 'corrupt':42B 'crash':49B 'cve':13A,16A 'cvss':73B 'enabl':10A 'enterpris':19B 'execut':12A 'flaw':43B 'hitachi':20B 'issu':90C 'job':3A,22B,28B,85C,93C 'job-schedul':21B 'jp1':1A,24B 'jp1/automatic':27B,84C,92C 'let':46B 'list':60B 'manag':4A,29B,32B,62B,86C,94C,97C 'memori':41B 'overflow':9A,39B,81C 'run':53B 'schedul':23B 'score':74B 'server':57B 'servic':51B 'sourc':59B 'stack':7A,36B,78C 'stack-bas':35B,77C 'system':5A,30B,87C,95C 'version':63B 'vulner':82C 'window':26B","nicknames":[],"mitigations":[],"who_affected":"Organizations running the JP1/Automatic Job Management System 3 Manager in the affected range 10-00 before 13-50-31. Systems running only other JP1 components or versions at or above 13-50-31 are not listed as affected. The sources do not say what network exposure or configuration is needed to trigger the flaw.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T10:16:55+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L","cvss_by":"hirt@hitachi.co.jp","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-76935","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76935","severity":null,"published_at":"2026-10-27T10:16:55+00:00","modified_at":"2026-10-27T10:16:55+00:00","first_seen_at":"2026-10-27T10:31:02+00:00","fetched_at":"2026-10-27T10:31:02+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"}