{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-21863","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2024-12-29T08:45:45.780Z","datePublished":"2025-03-12T09:42:20.552Z","dateUpdated":"2026-05-11T21:07:58.213Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-05-11T21:07:58.213Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nio_uring: prevent opcode speculation\n\nsqe->opcode is used for different tables, make sure we santitise it\nagainst speculations."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["io_uring/io_uring.c"],"versions":[{"version":"d3656344fea0339fb0365c8df4d2beba4e0089cd","lessThan":"b9826e3b26ec031e9063f64a7c735449c43955e4","status":"affected","versionType":"git"},{"version":"d3656344fea0339fb0365c8df4d2beba4e0089cd","lessThan":"506b9b5e8c2d2a411ea8fe361333f5081c56d23a","status":"affected","versionType":"git"},{"version":"d3656344fea0339fb0365c8df4d2beba4e0089cd","lessThan":"fdbfd52bd8b85ed6783365ff54c82ab7067bd61b","status":"affected","versionType":"git"},{"version":"d3656344fea0339fb0365c8df4d2beba4e0089cd","lessThan":"1e988c3fe1264708f4f92109203ac5b1d65de50b","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["io_uring/io_uring.c"],"versions":[{"version":"5.6","status":"affected"},{"version":"0","lessThan":"5.6","status":"unaffected","versionType":"semver"},{"version":"6.6.80","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.17","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.13.5","lessThanOrEqual":"6.13.*","status":"unaffected","versionType":"semver"},{"version":"6.14","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.6.80"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.12.17"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.13.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.6","versionEndExcluding":"6.14"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/b9826e3b26ec031e9063f64a7c735449c43955e4"},{"url":"https://git.kernel.org/stable/c/506b9b5e8c2d2a411ea8fe361333f5081c56d23a"},{"url":"https://git.kernel.org/stable/c/fdbfd52bd8b85ed6783365ff54c82ab7067bd61b"},{"url":"https://git.kernel.org/stable/c/1e988c3fe1264708f4f92109203ac5b1d65de50b"}],"title":"io_uring: prevent opcode speculation","x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"metrics":[{"cvssV3_1":{"scope":"UNCHANGED","version":"3.1","baseScore":7.8,"attackVector":"LOCAL","baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","integrityImpact":"HIGH","userInteraction":"NONE","attackComplexity":"LOW","availabilityImpact":"HIGH","privilegesRequired":"LOW","confidentialityImpact":"HIGH"}},{"other":{"type":"ssvc","content":{"id":"CVE-2025-21863","role":"CISA Coordinator","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"total"}],"version":"2.0.3","timestamp":"2025-10-01T19:25:38.400104Z"}}}],"problemTypes":[{"descriptions":[{"lang":"en","type":"CWE","description":"CWE-noinfo Not enough information"}]}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2025-10-01T19:26:37.446Z"}}]}}