{"id":"CVE-2026-21387","state":"PUBLISHED","title":"Protection mechanism failure for some Intel(R) LLM Library for PyTorch within Ring 3: User Applications may allow an escalation of privilege. Unprivileged software adversary with a","description":"Protection mechanism failure for some Intel(R) LLM Library for PyTorch within Ring 3: User Applications may allow an escalation of privilege. Unprivileged 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 present without special internal knowledge and requires passive 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.","publishedAt":"2026-08-11T16:27:28.322Z","updatedAt":"2026-08-12T15:29:42.944Z","severity":{"score":5.4,"label":"Medium","version":"4.0","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","source":"intel"},"assigner":"intel","products":["n/a Intel(R) LLM Library for PyTorch"],"affected":[{"vendor":"n/a","product":"Intel(R) LLM Library for PyTorch","defaultStatus":"unaffected","versions":[{"version":"See references","status":"affected"}]}],"references":["https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01465.html"],"weaknesses":["CWE-693"],"ingestedAt":"2026-10-29T20:11:10.572Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/21xxx/CVE-2026-21387.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21387","state":"PUBLISHED","datePublished":"2026-08-11T16:27:28.322Z","dateUpdated":"2026-08-12T15:29:42.944Z","assignerShortName":"intel","assignerOrgId":"6dda929c-bb53-4a77-a76d-48e79601a1ce","dateReserved":"2026-01-13T04:00:20.789Z"},"containers":{"cna":{"descriptions":[{"lang":"en","value":"Protection mechanism failure for some Intel(R) LLM Library for PyTorch within Ring 3: User Applications may allow an escalation of privilege. Unprivileged 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 present without special internal knowledge and requires passive 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."}],"affected":[{"vendor":"n/a","product":"Intel(R) LLM Library for PyTorch","defaultStatus":"unaffected","versions":[{"version":"See references","status":"affected"}]}],"references":[{"url":"https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01465.html","name":"https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01465.html"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}],"cvssV4_0":{"version":"4.0","baseScore":5.4,"baseSeverity":"MEDIUM","vectorString":"CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"HIGH","userInteraction":"PASSIVE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE"}}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Escalation of Privilege"},{"cweId":"CWE-693","lang":"en","description":"Protection Mechanism Failure","type":"CWE"}]}],"providerMetadata":{"shortName":"intel","orgId":"6dda929c-bb53-4a77-a76d-48e79601a1ce","dateUpdated":"2026-08-11T16:27:28.322Z"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-08-12T15:29:16.843322Z","id":"CVE-2026-21387","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-693","type":"CWE","lang":"en","description":"CWE-693 Protection Mechanism Failure"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-08-12T15:29:42.944Z"}}]}}}