{"id":"CVE-2026-44624","kind":"vulnerability","aliases":["CVE-2026-44624"],"related":[],"title":"Intel Slim Bootloader: Ext2 parser comparison flaw allows denial of service","description":"Incorrect comparison in the Ext2 parser for the Intel(R) Slim Bootloader within Ring 0: Bare Metal OS may allow a denial of service. System software adversary with a privileged user combined with a low complexity attack may enable data corruption. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.","summary":"Intel's Slim Bootloader has an incorrect comparison in its Ext2 filesystem parser. A privileged local user or system software can corrupt data and crash the bare metal OS.","severity":"medium","cvss":5.7,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["bare-metal","firmware","infrastructure","intel","slim-bootloader"],"not_affected_if":["no-slim-bootloader","other-bootloader"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-11-10T18:17:40+00:00","first_seen_at":"2026-11-10T18:22:58+00:00","triaged_at":"2026-11-10T18:25:09+00:00","updated_at":"2026-11-10T18:25:09+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-11-10T18:25:09Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Intel Slim Bootloader: Ext2 parser comparison flaw allows denial of service","impact":"medium","summary":"Intel's Slim Bootloader has an incorrect comparison in its Ext2 filesystem parser. A privileged local user or system software can corrupt data and crash the bare metal OS.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["intel","slim-bootloader","bare-metal","firmware"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local privileged user corrupts data and crashes the system","analyst_note":"Find Intel's advisory and the affected Slim Bootloader versions and fixed release; NVD text alone gives no version or fix.","how_to_check":"unknown","plain_action":"","product_name":"Intel Slim Bootloader","needs_analyst":true,"not_affected_if":["other-bootloader","no-slim-bootloader"],"who_is_affected":"Affects systems that boot with Intel Slim Bootloader and read Ext2 partitions during boot. Exposure requires local access with privileged rights; systems using other bootloaders are not affected. The sources do not list affected versions or a fix.","user_interaction":"no","product_ecosystem":"vendor","needs_special_setup":"yes","severity_if_unknown":"medium"},"cost_usd":0.000711,"input_tokens":4665,"output_tokens":489,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-44624':14A,17A '0':70C 'access':104C 'adversari':82C 'allow':8A,75C 'attack':92C,106C 'avail':130C,145C 'bare':19B,53B,71C 'bare-met':18B 'bootload':3A,26B,30B,67C 'combin':87C 'comparison':6A,34B,57C 'complex':91C 'confidenti':125C,140C 'corrupt':48B,96C 'crash':51B 'cve':12A,15A 'data':49B,95C 'denial':9A,77C 'enabl':94C 'ext2':4A,37B,60C 'filesystem':38B 'firmwar':21B 'flaw':7A 'high':128C,131C 'impact':123C,147C 'incorrect':33B,56C 'infrastructur':22B 'integr':127C,142C 'intel':1A,23B,27B,64C 'interact':118C 'intern':112C 'knowledg':113C 'local':42B,103C 'low':90C 'may':74C,93C,99C,122C 'metal':20B,54B,72C 'none':126C,141C,143C,146C 'occur':101C 'os':55B,73C 'parser':5A,39B,61C 'potenti':100C,120C 'present':109C 'privileg':41B,85C 'r':65C 'requir':107C,115C 'result':98C,136C 'ring':69C 'servic':11A,79C 'slim':2A,25B,29B,66C 'slim-bootload':24B 'softwar':46B,81C 'special':111C 'subsequ':138C 'system':45B,80C,135C,139C 'user':43B,86C,117C 'via':102C 'vulner':121C,134C 'within':68C 'without':110C","nicknames":[],"mitigations":[],"who_affected":"Affects systems that boot with Intel Slim Bootloader and read Ext2 partitions during boot. Exposure requires local access with privileged rights; systems using other bootloaders are not affected. The sources do not list affected versions or a fix.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["baremetal","firmware","infrastructure","intel","medium","slimbootloader"],"campaign_type":null,"search_a":"'-2026':13A,16A '-44624':14A,17A 'allow':8A 'bootload':3A 'comparison':6A 'cve':12A,15A 'denial':9A 'ext2':4A 'flaw':7A 'intel':1A 'parser':5A 'servic':11A 'slim':2A","search_b":"'bare':19B,53B 'bare-met':18B 'bootload':26B,30B 'comparison':34B 'corrupt':48B 'crash':51B 'data':49B 'ext2':37B 'filesystem':38B 'firmwar':21B 'incorrect':33B 'infrastructur':22B 'intel':23B,27B 'local':42B 'metal':20B,54B 'os':55B 'parser':39B 'privileg':41B 'slim':25B,29B 'slim-bootload':24B 'softwar':46B 'system':45B 'user':43B","search_c":"'0':70C 'access':104C 'adversari':82C 'allow':75C 'attack':92C,106C 'avail':130C,145C 'bare':71C 'bootload':67C 'combin':87C 'comparison':57C 'complex':91C 'confidenti':125C,140C 'corrupt':96C 'data':95C 'denial':77C 'enabl':94C 'ext2':60C 'high':128C,131C 'impact':123C,147C 'incorrect':56C 'integr':127C,142C 'intel':64C 'interact':118C 'intern':112C 'knowledg':113C 'local':103C 'low':90C 'may':74C,93C,99C,122C 'metal':72C 'none':126C,141C,143C,146C 'occur':101C 'os':73C 'parser':61C 'potenti':100C,120C 'present':109C 'privileg':85C 'r':65C 'requir':107C,115C 'result':98C,136C 'ring':69C 'servic':79C 'slim':66C 'softwar':81C 'special':111C 'subsequ':138C 'system':80C,135C,139C 'user':86C,117C 'via':102C 'vulner':121C,134C 'within':68C 'without':110C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-11-10T18:17:40+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"secure@intel.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-44624","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44624","severity":null,"published_at":"2026-11-10T18:17:40+00:00","modified_at":"2026-11-10T18:17:40+00:00","first_seen_at":"2026-11-10T18:22:58+00:00","fetched_at":"2026-11-10T18:22:58+00:00","note":null}],"documents":[],"disclosures":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}