{"id":"CVE-2026-118786","kind":"vulnerability","aliases":["CVE-2026-118786"],"related":[],"title":"NXP MCUXpresso SDK: unchecked pointers in secure-world veneer leak memory","description":"Improper input validation in non-secure-callable (NSC)\nveneer functions of the NXP MCUXpresso SDK rpmsg-lite multicore example\n(multicore_examples/rpmsg_lite_pingpong_tzm) up to releases 26.06.00-lts and\n26.09.00 may allow a non-secure caller to supply unvalidated pointers and size\nvalues, potentially resulting in disclosure of secure-world memory to the\nnon-secure domain, or denial of service. All software versions starting from\n26.06.01-lts and 26.12.00-pvw1 have fixed this issue.","summary":"The NXP MCUXpresso SDK rpmsg-lite multicore example exposes non-secure-callable veneer functions that accept pointers and sizes without validation. A non-secure caller can read secure-world memory or crash the device.","severity":"medium","cvss":6.8,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["embedded","mcuxpresso-sdk","nxp","package","rpmsg-lite","trustzone"],"not_affected_if":["no-trustzone-multicore","other-sdk-examples"],"how_to_check":"- Check whether the project includes the `multicore_examples/rpmsg_lite_pingpong_tzm` example from the MCUXpresso SDK.\n- Check the SDK release in use: affected releases are up to `26.06.00-lts` and `26.09.00`.","fix":"- Move to `26.06.01-lts` or later in the 26.06 line.\n- Move to `26.12.00-pvw1` or later.","status":"open","published_at":"2026-11-06T23:17:20+00:00","first_seen_at":"2026-11-06T23:44:35+00:00","triaged_at":"2026-11-06T23:45:08+00:00","updated_at":"2026-11-06T23:45:08+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-06T23:45:08Z","model":"claude-haiku-5-5","output":{"fix":"- Move to `26.06.01-lts` or later in the 26.06 line.\n- Move to `26.12.00-pvw1` or later.","reach":"local","title":"NXP MCUXpresso SDK: unchecked pointers in secure-world veneer leak memory","impact":"medium","summary":"The NXP MCUXpresso SDK rpmsg-lite multicore example exposes non-secure-callable veneer functions that accept pointers and sizes without validation. A non-secure caller can read secure-world memory or crash the device.","audience":"developers","category":"package","nicknames":[],"who_cares":["nxp","mcuxpresso-sdk","rpmsg-lite","trustzone","embedded"],"confidence":0.6,"fix_status":"available","needs_auth":"unknown","worst_case":"non-secure code reads secure-world memory or crashes the device","analyst_note":"","how_to_check":"- Check whether the project includes the `multicore_examples/rpmsg_lite_pingpong_tzm` example from the MCUXpresso SDK.\n- Check the SDK release in use: affected releases are up to `26.06.00-lts` and `26.09.00`.","plain_action":"","needs_analyst":false,"not_affected_if":["no-trustzone-multicore","other-sdk-examples"],"who_is_affected":"Only projects built on the NXP MCUXpresso SDK rpmsg-lite TrustZone multicore example are exposed, and the flaw matters where non-secure code can call the secure-side veneer functions. Teams using other SDK examples or no TrustZone multicore setup can skip it.","user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"medium"},"cost_usd":0.000729,"input_tokens":4333,"output_tokens":592,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-118786':15A,18A '-2026':14A,17A '26.06.00':93C '26.06.01':135C '26.09.00':96C '26.12.00':138C 'accept':46B 'allow':98C 'callabl':42B,74C 'caller':56B,103C 'crash':64B 'cve':13A,16A 'denial':127C 'devic':66B 'disclosur':114C 'domain':125C 'embed':19B 'exampl':37B,87C 'examples/rpmsg_lite_pingpong_tzm':89C 'expos':38B 'fix':141C 'function':44B,77C 'improp':67C 'input':68C 'issu':143C 'leak':11A 'lite':27B,35B,85C 'lts':94C,136C 'may':97C 'mcuxpresso':2A,21B,31B,81C 'mcuxpresso-sdk':20B 'memori':12A,62B,119C 'multicor':36B,86C,88C 'non':40B,54B,72C,101C,123C 'non-secur':53B,100C,122C 'non-secure-cal':39B,71C 'nsc':75C 'nxp':1A,23B,30B,80C 'packag':24B 'pointer':5A,47B,107C 'potenti':111C 'pvw1':139C 'read':58B 'releas':92C 'result':112C 'rpmsg':26B,34B,84C 'rpmsg-lite':25B,33B,83C 'sdk':3A,22B,32B,82C 'secur':8A,41B,55B,60B,73C,102C,117C,124C 'secure-world':7A,59B,116C 'servic':129C 'size':49B,109C 'softwar':131C 'start':133C 'suppli':105C 'trustzon':28B 'uncheck':4A 'unvalid':106C 'valid':51B,69C 'valu':110C 'veneer':10A,43B,76C 'version':132C 'without':50B 'world':9A,61B,118C","nicknames":[],"mitigations":[],"who_affected":"Only projects built on the NXP MCUXpresso SDK rpmsg-lite TrustZone multicore example are exposed, and the flaw matters where non-secure code can call the secure-side veneer functions. Teams using other SDK examples or no TrustZone multicore setup can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"developers","plain_action":null,"pkeys":[],"ptokens":[],"labels":["embedded","mcuxpressosdk","medium","nxp","package","rpmsglite","trustzone"],"campaign_type":null,"search_a":"'-118786':15A,18A '-2026':14A,17A 'cve':13A,16A 'leak':11A 'mcuxpresso':2A 'memori':12A 'nxp':1A 'pointer':5A 'sdk':3A 'secur':8A 'secure-world':7A 'uncheck':4A 'veneer':10A 'world':9A","search_b":"'accept':46B 'callabl':42B 'caller':56B 'crash':64B 'devic':66B 'embed':19B 'exampl':37B 'expos':38B 'function':44B 'lite':27B,35B 'mcuxpresso':21B,31B 'mcuxpresso-sdk':20B 'memori':62B 'multicor':36B 'non':40B,54B 'non-secur':53B 'non-secure-cal':39B 'nxp':23B,30B 'packag':24B 'pointer':47B 'read':58B 'rpmsg':26B,34B 'rpmsg-lite':25B,33B 'sdk':22B,32B 'secur':41B,55B,60B 'secure-world':59B 'size':49B 'trustzon':28B 'valid':51B 'veneer':43B 'without':50B 'world':61B","search_c":"'26.06.00':93C '26.06.01':135C '26.09.00':96C '26.12.00':138C 'allow':98C 'callabl':74C 'caller':103C 'denial':127C 'disclosur':114C 'domain':125C 'exampl':87C 'examples/rpmsg_lite_pingpong_tzm':89C 'fix':141C 'function':77C 'improp':67C 'input':68C 'issu':143C 'lite':85C 'lts':94C,136C 'may':97C 'mcuxpresso':81C 'memori':119C 'multicor':86C,88C 'non':72C,101C,123C 'non-secur':100C,122C 'non-secure-cal':71C 'nsc':75C 'nxp':80C 'pointer':107C 'potenti':111C 'pvw1':139C 'releas':92C 'result':112C 'rpmsg':84C 'rpmsg-lite':83C 'sdk':82C 'secur':73C,102C,117C,124C 'secure-world':116C 'servic':129C 'size':109C 'softwar':131C 'start':133C 'suppli':105C 'unvalid':106C 'valid':69C 'valu':110C 'veneer':76C 'version':132C 'world':118C","first_public_at":"2026-11-06T23:17:20+00:00","kev":null,"cvss_vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L","cvss_by":"a6d3dc9e-0591-4a13-bce7-0f5b31ff6158","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-118786","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118786","severity":null,"published_at":"2026-11-06T23:17:20+00:00","modified_at":"2026-11-06T23:17:20+00:00","first_seen_at":"2026-11-06T23:44:35+00:00","fetched_at":"2026-11-06T23:44:35+00:00","note":null}],"documents":[],"exploit_sources":[],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}