{"schemaVersion":3,"id":"CVE-2026-4738","aliases":["UBUNTU-CVE-2026-4738","DEBIAN-CVE-2026-4738"],"status":"published","duplicateOf":null,"title":null,"description":"Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in OSGeo gdal (frmts/zlib/contrib/infback9 modules). This vulnerability is associated with program files inftree9.C‎.\n\nThis issue affects gdal: before 3.11.0.","dates":{"published":"2026-03-24T03:18:10.245Z","modified":"2026-03-24T14:35:23.904Z","reserved":null,"kevAdded":[],"kevDue":[]},"cvss":{"headline":{"score":9.4,"severity":"critical","version":"4.0","versionLabel":"v4.0","source":"CVE.org","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:P/AU:Y/R:U/V:C/RE:L/U:Amber","computed":false,"selection":"backend-summary"},"metrics":[{"version":"4.0","versionLabel":"v4.0","source":"CVE.org","score":9.4,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:P/AU:Y/R:U/V:C/RE:L/U:Amber","exploitability":null,"impact":null,"computed":false},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Ubuntu","score":9.4,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/S:P/AU:Y/R:U/V:C/RE:L/U:Amber","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"OSV · Debian","score":9.4,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:U/V:C/RE:L/U:Amber","exploitability":null,"impact":null,"computed":true},{"version":"4.0","versionLabel":"v4.0","source":"NVD","score":9.4,"severity":"critical","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:P/AU:Y/R:U/V:C/RE:L/U:Amber","exploitability":null,"impact":null,"computed":false}]},"epss":{"probability":0.00428,"percentile":0.3567,"severity":"low","asOf":"2026-10-19T00:00:00.000Z","change":{"pp":0.152,"baselineDate":"2026-09-19T00:00:00.000Z","baselineScore":0.00276},"history":[{"date":"2026-09-14T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-15T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-16T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-17T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-18T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-19T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00428,"percentile":0.3567}],"last30":[{"date":"2026-09-19T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-20T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-21T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-22T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-23T00:00:00.000Z","score":0.00276,"percentile":null},{"date":"2026-09-24T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-25T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-26T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-27T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-28T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-29T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-09-30T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-01T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-02T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-03T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-04T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-05T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-06T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-07T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-08T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-09T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-10T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-11T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-12T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-13T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-14T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-15T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-16T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-17T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-18T00:00:00.000Z","score":0.00428,"percentile":null},{"date":"2026-10-19T00:00:00.000Z","score":0.00428,"percentile":0.3567}]},"kev":{"state":"not-listed","entries":[],"listedCount":0,"totalCatalogs":3,"catalogs":[{"source":"cisa","label":"CISA","listed":false,"entry":null},{"source":"enisa","label":"ENISA","listed":false,"entry":null},{"source":"circl","label":"CIRCL","listed":false,"entry":null}]},"ransomware":{"state":"none-recorded","sources":[]},"exploits":[],"exploitCount":0,"weaknesses":[{"id":"CWE-119","name":"Improper Restriction of Operations within the Bounds of a Memory Buffer","description":"The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.","type":"weakness","status":"Stable","abstraction":"Class","likelihoodOfExploit":"High","url":"https://cwe.mitre.org/data/definitions/119.html"}],"affected":[{"vendor":"debian","product":"gdal","name":"gdal","label":"gdal","ecosystem":"Debian","cpePart":null,"purl":"pkg:deb/debian/gdal","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null},{"text":"< 3.11.3+dfsg-1","noFixRecorded":false,"fixedIn":null}],"versionsText":"All versions (No fix recorded) | < 3.11.3+dfsg-1","eol":null,"hubHref":null},{"vendor":"ubuntu","product":"gdal","name":"gdal","label":"gdal","ecosystem":"Ubuntu","cpePart":null,"purl":"pkg:deb/ubuntu/gdal","purlType":"deb","versions":[{"text":"All versions","noFixRecorded":true,"fixedIn":null}],"versionsText":"All versions (No fix recorded)","eol":null,"hubHref":null},{"vendor":"osgeo","product":"gdal","name":"gdal","label":"gdal","ecosystem":null,"cpePart":"a","purl":null,"purlType":null,"versions":[{"text":"< 3.11.0","noFixRecorded":false,"fixedIn":null}],"versionsText":"< 3.11.0","eol":null,"hubHref":"/vendor/osgeo/gdal"}],"affectedCount":3,"eol":{"hasEol":false,"count":0},"references":[{"url":"https://github.com/OSGeo/gdal/pull/12244","label":"github.com/OSGeo/gdal/pull/12244","hostname":"github.com","tags":["Patch","REPORT"]},{"url":"https://ubuntu.com/security/CVE-2026-4738","label":"ubuntu.com/security/CVE-2026-4738","hostname":"ubuntu.com","tags":["REPORT"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-4738","label":"www.cve.org/CVERecord?id=CVE-2026-4738","hostname":"www.cve.org","tags":["REPORT"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-4738","label":"security-tracker.debian.org/tracker/CVE-2026-4738","hostname":"security-tracker.debian.org","tags":["Advisory"]}],"lineage":{"upstream":[],"downstream":[],"duplicates":[],"related":[]},"timeline":[{"kind":"published","date":"2026-03-24T03:18:10.245Z","label":"Published","detail":"Vulnerability first disclosed.","source":null},{"kind":"modified","date":"2026-03-24T14:35:23.904Z","label":"Last modified","detail":"Vulnerability information updated.","source":null}],"risk":{"score":70,"level":"high","profile":"Default","thresholds":{"critical":75,"high":50,"medium":25,"low":10}},"meta":{"dataAsOf":"2026-10-20T05:54:22.318Z","stale":false,"partial":false}}