{"id":"CVE-2026-106026","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-106026","generatedAt":"2026-10-27T22:47:39.723Z","title":"tftp-hpa 5.4 before 6.0 contains an out-of-bounds read vulnerability in rewrite_string() in tftpd/remap.c that walks heap memory during jump label searches.","description":"tftp-hpa 5.4 before 6.0 contains an out-of-bounds read vulnerability in rewrite_string() in tftpd/remap.c that walks heap memory during jump label searches. Unauthenticated remote attackers can send read or write requests whose filename matches a remap jump rule to crash the forked in.tftpd request handler.","published":"2026-10-06T14:17:42.000Z","lastModified":"2026-10-06T18:16:51.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":6.3,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-125"],"affected":[],"epss":{"score":0.00368,"percentile":0.30423,"date":"2026-10-26","history":[{"date":"2026-10-07","score":0.00368,"percentile":0.28562}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.37%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-06T14:17:42.000Z","detail":{"score":"6.3","severity":"MEDIUM","publishedAt":"2026-10-06T14:17:42.083Z"},"summary":"New CVE, medium severity (CVSS 6.3)."}],"references":[{"url":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/","source":"disclosure@vulncheck.com"},{"url":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=6735086fb6475c3e1f1daf9829836b3d06f14291","source":"disclosure@vulncheck.com"},{"url":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/tree/tftpd/remap.c?h=tftp-hpa-5.4#n762","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/tftp-hpa-5.4-before-6.0-out-of-bounds-read-via-tftpd-remap-jump-rule","source":"disclosure@vulncheck.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-106026","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}