{"id":"CVE-2026-50175","kind":"vulnerability","aliases":["CVE-2026-50175"],"related":[],"title":"Intel Slim Bootloader: untrusted pointer lets a privileged local user escalate","description":"Untrusted pointer dereference in the FirmwareWakingVector for the Intel(R) Slim Bootloader within Ring 0: Bare Metal OS may allow an escalation of privilege. System software adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.","summary":"Intel Slim Bootloader's FirmwareWakingVector dereferences an untrusted pointer in Ring 0 bare-metal OS code. A local attacker with a privileged user account can escalate privileges, gaining full control of the affected system.","severity":"high","cvss":8.4,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"Intel Slim Bootloader","fixed":["9e77d9abb867e7ab4fec8249035cf9ba6550aed7"],"affected":"builds before commit 9e77d9abb867e7ab4fec8249035cf9ba6550aed7 (July 7, 2026)","ecosystem":"vendor"}],"ecosystems":[],"tags":["bare-metal","embedded","firmware","infrastructure","intel","slim-bootloader"],"not_affected_if":["no-slim-bootloader"],"how_to_check":"Check which Slim Bootloader build your device firmware uses (ask your board or device vendor, or check the SBL source commit) and compare it with commit 9e77d9abb867e7ab4fec8249035cf9ba6550aed7 (July 7, 2026). Only devices running Slim Bootloader on the CPU families in INTEL-SA-01526 are in scope, e.g. Alder Lake, Amston Lake, Apollo Lake, Arrow Lake, Elkhart Lake, Meteor Lake, Panther Lake, Tiger Lake, Comet Lake, Coffee Lake, Ice Lake-D, Granite Rapids-D, Twin Lake, Bartlett Lake-S.","fix":"Update Intel Slim Bootloader to the build at commit hash 9e77d9abb867e7ab4fec8249035cf9ba6550aed7 (July 7th, 2026) or later; get firmware from your board/device vendor.","status":"open","published_at":"2026-11-10T18:17:40+00:00","first_seen_at":"2026-11-10T18:22:58+00:00","triaged_at":"2026-11-10T18:24:28+00:00","updated_at":"2026-11-10T18:28:08+00:00","category":"infrastructure","confidence":0.85,"triage":{"at":"2026-11-10T18:24:28Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Intel Slim Bootloader: untrusted pointer lets a privileged local user escalate","impact":"high","summary":"Intel Slim Bootloader's FirmwareWakingVector dereferences an untrusted pointer in Ring 0 bare-metal OS code. A local attacker with a privileged user account can escalate privileges, gaining full control of the affected system.","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 attacker gains Ring 0 control and full system compromise","analyst_note":"Find the Intel security advisory and affected Slim Bootloader version ranges and fixed release; the NVD entry gives none.","how_to_check":"unknown","plain_action":"","product_name":"","needs_analyst":true,"not_affected_if":["no-slim-bootloader"],"who_is_affected":"Systems that run Intel Slim Bootloader with a Ring 0 bare-metal OS are the exposed ones, and the attacker needs local access and a privileged account first. The sources do not name affected versions or a configuration check, so teams running Slim Bootloader should confirm whether they use it.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"unknown","severity_if_unknown":"high"},"cost_usd":0.000712,"input_tokens":4677,"output_tokens":488,"severity_before":"high"},"analyst_status":"done","analyst_note":"Find the Intel security advisory and affected Slim Bootloader version ranges and fixed release; the NVD entry gives none.","search":"'-2026':13A,16A '-50175':14A,17A '0':42B,80C 'access':115C 'account':55B 'adversari':92C 'affect':64B 'allow':85C 'attack':50B,102C,117C 'avail':142C,157C 'bare':22B,44B,81C 'bare-met':21B,43B 'bootload':3A,30B,33B,77C 'bootloader':20A 'code':47B 'combin':97C 'complex':101C 'confidenti':137C,152C 'control':61B 'cve':12A,15A 'derefer':36B,68C 'embed':24B 'enabl':104C 'escal':11A,57B,87C,105C 'firmwar':25B 'firmwarewakingvector':35B,71C 'full':60B 'gain':59B 'high':138C,140C,143C 'impact':135C,159C 'infrastructur':26B 'integr':139C,154C 'intel':1A,18A,27B,31B,74C 'interact':130C 'intern':124C 'knowledg':125C 'let':6A 'local':9A,49B,114C 'low':100C 'may':84C,103C,110C,134C 'metal':23B,45B,82C 'none':153C,155C,158C 'occur':112C 'os':46B,83C 'pointer':5A,39B,67C 'potenti':111C,132C 'present':121C 'privileg':8A,53B,58B,89C,95C,107C 'r':75C 'requir':118C,127C 'result':109C,148C 'ring':41B,79C 'slim':2A,19A,29B,32B,76C 'slim-bootload':28B 'softwar':91C 'special':123C 'subsequ':150C 'system':65B,90C,147C,151C 'untrust':4A,38B,66C 'user':10A,54B,96C,129C 'via':113C 'vulner':133C,146C 'within':78C 'without':122C","nicknames":[],"mitigations":[],"who_affected":"Embedded and edge devices that boot with Intel Slim Bootloader on the CPU families listed in INTEL-SA-01526. Exploiting it needs local access and an already privileged account (Intel rates privileges required: high), so it mainly matters for locked-down appliances and kiosks where root should not equal firmware-level control. Anyone not using Slim Bootloader (standard UEFI PCs, cloud VMs) can skip it.","tier":"B","verified":{"fix":{"at":"2026-11-10T18:28:08Z","by":"analyst","doc":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01526.html","run_id":2496},"how_to_check":{"at":"2026-11-10T18:28:08Z","by":"analyst","doc":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01526.html","run_id":2496},"who_affected":{"at":"2026-11-10T18:28:08Z","by":"analyst","doc":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01526.html","run_id":2496}},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":["intelslimbootloader","slimbootloader"],"ptokens":["bootloader","intel","slim"],"labels":["baremetal","embedded","firmware","high","infrastructure","intel","slimbootloader"],"campaign_type":null,"search_a":"'-2026':13A,16A '-50175':14A,17A 'bootload':3A 'bootloader':20A 'cve':12A,15A 'escal':11A 'intel':1A,18A 'let':6A 'local':9A 'pointer':5A 'privileg':8A 'slim':2A,19A 'untrust':4A 'user':10A","search_b":"'0':42B 'account':55B 'affect':64B 'attack':50B 'bare':22B,44B 'bare-met':21B,43B 'bootload':30B,33B 'code':47B 'control':61B 'derefer':36B 'embed':24B 'escal':57B 'firmwar':25B 'firmwarewakingvector':35B 'full':60B 'gain':59B 'infrastructur':26B 'intel':27B,31B 'local':49B 'metal':23B,45B 'os':46B 'pointer':39B 'privileg':53B,58B 'ring':41B 'slim':29B,32B 'slim-bootload':28B 'system':65B 'untrust':38B 'user':54B","search_c":"'0':80C 'access':115C 'adversari':92C 'allow':85C 'attack':102C,117C 'avail':142C,157C 'bare':81C 'bootload':77C 'combin':97C 'complex':101C 'confidenti':137C,152C 'derefer':68C 'enabl':104C 'escal':87C,105C 'firmwarewakingvector':71C 'high':138C,140C,143C 'impact':135C,159C 'integr':139C,154C 'intel':74C 'interact':130C 'intern':124C 'knowledg':125C 'local':114C 'low':100C 'may':84C,103C,110C,134C 'metal':82C 'none':153C,155C,158C 'occur':112C 'os':83C 'pointer':67C 'potenti':111C,132C 'present':121C 'privileg':89C,95C,107C 'r':75C 'requir':118C,127C 'result':109C,148C 'ring':79C 'slim':76C 'softwar':91C 'special':123C 'subsequ':150C 'system':90C,147C,151C 'untrust':66C 'user':96C,129C 'via':113C 'vulner':133C,146C 'within':78C 'without':122C","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:N/PR:H/UI:N/VC:H/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-2026-50175","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50175","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},{"source":"analyst","external_id":"CVE-2026-50175:2496","url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01526.html","severity":null,"published_at":"2026-11-10T18:28:08+00:00","modified_at":"2026-11-10T18:28:08+00:00","first_seen_at":"2026-11-10T18:28:08+00:00","fetched_at":"2026-11-10T18:28:08+00:00","note":"Intel INTEL-SA-01526 (11/10/2026, HIGH, CVSS4 8.4) read directly. Fix is a build hash, not a version; affected list is by CPU family. No exploitation or PoC seen (not searched on X; low-conversation expected).","cites":["https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01526.html"]}],"documents":[{"id":117070,"url":"https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01526.html","title":"INTEL-SA-01526 Intel Slim Bootloader Advisory","kind":"advisory","source":"analyst","publisher":null,"text":null,"published_at":null,"relation":"advisory","confidence":null,"note":null}],"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"}