{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-111124","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-15T17:03:50.803Z","datePublished":"2026-10-15T18:57:21.328Z","dateUpdated":"2026-10-26T15:02:09.903Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-15T18:57:21.328Z"},"datePublic":"2026-10-15T00:00:00.000Z","title":"CFITSIO through 4.7.0 Heap Out-of-Bounds Read via Negative ZDITHER0 Seed","descriptions":[{"lang":"en","value":"CFITSIO through 4.7.0 contains a heap-based out-of-bounds read vulnerability in the imcompress.c unquantize helpers that allows attackers to read memory before the fits_rand_value table via a zero or negative ZDITHER0 seed. Attackers can supply a crafted FITS file with a SUBTRACTIVE_DITHER_1 compressed image, read through fits_open_file() and fits_read_pix(), to cause crashes or leak heap contents in decoded pixels."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Out-of-bounds Read","cweId":"CWE-125","type":"CWE"}]}],"affected":[{"vendor":"HEASARC","product":"cfitsio","defaultStatus":"unaffected","versions":[{"version":"0","lessThanOrEqual":"4.7.0","status":"affected","versionType":"semver"}],"collectionURL":"https://github.com","repo":"https://github.com/HEASARC/cfitsio"}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.9,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"HIGH","baseScore":6.1,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://hackmd.io/@haind-pwn/cfitsio-zdither0-dither-seed-oob-read","tags":["technical-description"]},{"url":"https://github.com/HEASARC/cfitsio/blob/d6d27653740864a0483e74cff23c53e34e1dceee/imcompress.c#L5353-L5362","tags":["technical-description"]},{"url":"https://github.com/HEASARC/cfitsio/blob/d6d27653740864a0483e74cff23c53e34e1dceee/imcompress.c#L7495-L7516","tags":["technical-description"]},{"url":"https://github.com/HEASARC/cfitsio","tags":["product"]},{"name":"VulnCheck Advisory: CFITSIO through 4.7.0 Heap Out-of-Bounds Read via Negative ZDITHER0 Seed","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/cfitsio-through-4.7.0-heap-out-of-bounds-read-via-negative-zdither0-seed"}],"credits":[{"lang":"en","value":"HaiND from the Post and Telecommunication Institute of Technology","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"references":[{"url":"https://hackmd.io/@haind-pwn/cfitsio-zdither0-dither-seed-oob-read","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-26T15:02:01.055497Z","id":"CVE-2026-111124","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-10-26T15:02:09.903Z"}}]}}