{"schema":"threatline.record/2","record":{"id":"CVE-2026-111158","aliases":[],"summary":"EarthScope libmseed through 3.5.4 Heap Out-of-Bounds Read via ms3_detect","details":"EarthScope libmseed through 3.5.4 contains a heap out-of-bounds read vulnerability in ms3_detect() in parseutils.c that reads past truncated miniSEED 2 record buffers. Attackers can supply a 40 to 47 byte buffer passing MS2_ISVALIDHEADER to msr3_parse() or ms3_detect(), over-reading up to 8 bytes and potentially crashing the process.","categories":["Unclassified"],"product":"libmseed","vendor":"EarthScope","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111158","source_modified_at":"2026-10-15T19:42:14.325Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"libmseed","vendor":"EarthScope","versions":[{"version":"0","lessThanOrEqual":"3.5.4","status":"affected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[],"cvss":6.8,"severity":"Medium","kev":{"listed":false},"epss":{"probability":0.0013,"percentile":0.02364,"score_date":"2026-10-23"},"published_at":"2026-10-15T18:57:46.924Z","modified_at":"2026-10-15T19:42:14.325Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111158","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T19:42:14.325Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111158","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://hackmd.io/@haind-pwn/libmseed-ms3detect-short-header-oob-read","tags":["technical-description","exploit"]},{"source":"CVE List","url":"https://github.com/EarthScope/libmseed/blob/d6e6ad306de5b7bdde072e5a5e3d58ddcc11abd8/parseutils.c#L192-L234","tags":["technical-description"]},{"source":"CVE List","url":"https://github.com/EarthScope/libmseed/commit/c93a36a1381e944b59b10967342ee1cb94304223","tags":["patch"]},{"source":"CVE List","url":"https://github.com/EarthScope/libmseed","tags":["product"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/earthscope-libmseed-through-3.5.4-heap-out-of-bounds-read-via-ms3-detect","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-15T19:41:54.865834Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T19:42:14.325Z","content_hash":"f8e1486bb30d78d32dd098cdc666373aedffe71d6226e58ebe29d4cd528dba60"}}