{"id":"CVE-2026-76934","kind":"vulnerability","aliases":["CVE-2026-76934"],"related":[],"title":"JP1 Automatic Job Management System 3: stack buffer overflow in Manager and Agent","description":"Stack-based Buffer Overflow Vulnerability in JP1/Automatic Job Management System 3.\n\nThis issue affects JP1/Automatic Job Management System 3 - Manager: from 11-00 before 13-50-31; JP1/Automatic Job Management System 3 - Agent: from 11-00 before 13-50-31.","summary":"JP1/Automatic Job Management System 3 Manager and Agent versions from 11-00 before 13-50-31 contain a stack-based buffer overflow. The sources do not say what input triggers it or whether it is remotely reachable, but a stack overflow in a job scheduler's Manager or Agent can let an attacker run code on the host.","severity":"critical","cvss":9.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["ajs3","hitachi","infrastructure","job-scheduler","jp1","linux","windows"],"not_affected_if":["version-13-50-31-or-later"],"how_to_check":"- Check the installed JP1/AJS3 Manager and Agent version in the product's version information; affected versions are from `11-00` before `13-50-31`\n- unknown for any other check, the sources do not say","fix":"- Upgrade JP1/Automatic Job Management System 3 Manager and Agent to `13-50-31` or later, per the vendor advisory\n- unknown for any interim workaround, the sources do not say","status":"open","published_at":"2026-10-27T10:16:54+00:00","first_seen_at":"2026-10-27T10:31:02+00:00","triaged_at":"2026-10-27T10:31:42+00:00","updated_at":"2026-10-27T10:31:42+00:00","category":"infrastructure","confidence":0.6,"triage":{"at":"2026-10-27T10:31:42Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade JP1/Automatic Job Management System 3 Manager and Agent to `13-50-31` or later, per the vendor advisory\n- unknown for any interim workaround, the sources do not say","reach":"unknown","title":"JP1 Automatic Job Management System 3: stack buffer overflow in Manager and Agent","impact":"high","summary":"JP1/Automatic Job Management System 3 Manager and Agent versions from 11-00 before 13-50-31 contain a stack-based buffer overflow. The sources do not say what input triggers it or whether it is remotely reachable, but a stack overflow in a job scheduler's Manager or Agent can let an attacker run code on the host.","category":"infrastructure","nicknames":[],"who_cares":["jp1","ajs3","job-scheduler","hitachi","windows","linux"],"confidence":0.6,"needs_auth":"unknown","worst_case":"code runs on the scheduler host with its privileges","analyst_note":"Check the Hitachi JP1 vendor advisory for the trigger, the reachable port and the fixed version; the NVD entry gives only the affected range.","how_to_check":"- Check the installed JP1/AJS3 Manager and Agent version in the product's version information; affected versions are from `11-00` before `13-50-31`\n- unknown for any other check, the sources do not say","needs_analyst":true,"not_affected_if":["version-13-50-31-or-later"],"who_is_affected":"Teams running JP1/Automatic Job Management System 3 Manager or Agent in the affected range from 11-00 before 13-50-31. Sites on 13-50-31 or later are not affected by this entry. The sources do not say which network services or configurations are exposed by default.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"critical"},"cost_usd":0.00065,"input_tokens":3327,"output_tokens":635,"severity_before":"critical"},"analyst_status":null,"analyst_note":null,"search":"'-00':40B,111C,124C '-2026':15A,18A '-31':44B,115C,128C '-50':43B,114C,127C '-76934':16A,19A '11':39B,110C,123C '13':42B,113C,126C '3':6A,33B,99C,107C,120C 'affect':102C 'agent':13A,36B,78B,121C 'ajs3':20B 'attack':82B 'automat':2A 'base':49B,90C 'buffer':8A,50B,91C 'code':84B 'contain':45B 'cve':14A,17A 'hitachi':21B 'host':87B 'infrastructur':22B 'input':58B 'issu':101C 'job':3A,24B,30B,73B,96C,104C,117C 'job-schedul':23B 'jp1':1A,26B 'jp1/automatic':29B,95C,103C,116C 'let':80B 'linux':27B 'manag':4A,11A,31B,34B,76B,97C,105C,108C,118C 'overflow':9A,51B,70B,92C 'reachabl':66B 'remot':65B 'run':83B 'say':56B 'schedul':25B,74B 'sourc':53B 'stack':7A,48B,69B,89C 'stack-bas':47B,88C 'system':5A,32B,98C,106C,119C 'trigger':59B 'version':37B 'vulner':93C 'whether':62B 'window':28B","nicknames":[],"mitigations":[],"who_affected":"Teams running JP1/Automatic Job Management System 3 Manager or Agent in the affected range from 11-00 before 13-50-31. Sites on 13-50-31 or later are not affected by this entry. The sources do not say which network services or configurations are exposed by default.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-27T10:16:54+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","cvss_by":"hirt@hitachi.co.jp","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-76934","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-76934","severity":null,"published_at":"2026-10-27T10:16:54+00:00","modified_at":"2026-10-27T10:16:54+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"}