{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-106026","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-10-06T13:13:19.964Z","datePublished":"2026-10-06T13:35:48.642Z","dateUpdated":"2026-10-06T17:15:34.212Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-10-06T13:35:48.642Z"},"datePublic":"2026-08-23T00:00:00.000Z","title":"tftp-hpa 5.4 before 6.0 Out-of-Bounds Read via tftpd Remap Jump Rule","descriptions":[{"lang":"en","value":"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."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Out-of-bounds Read","cweId":"CWE-125","type":"CWE"}]}],"affected":[{"vendor":"H. Peter Anvin","product":"tftp-hpa","repo":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git","defaultStatus":"unaffected","versions":[{"version":"5.4","lessThan":"6.0","status":"affected","versionType":"custom"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:tftp-hpa_project:tftp-hpa:*:*:*:*:*:*:*:*","versionStartIncluding":"5.4","versionEndExcluding":"6.0"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"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","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":6.3,"baseSeverity":"MEDIUM"}},{"format":"CVSS","cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L","attackVector":"NETWORK","attackComplexity":"HIGH","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW","baseScore":3.7,"baseSeverity":"LOW"}}],"references":[{"url":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/commit/?id=6735086fb6475c3e1f1daf9829836b3d06f14291","tags":["patch"],"name":"Patch Commit"},{"url":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/tree/tftpd/remap.c?h=tftp-hpa-5.4#n762","tags":["technical-description"],"name":"Vulnerable label search in rewrite_string() (tftp-hpa 5.4)"},{"url":"https://git.kernel.org/pub/scm/network/tftp/tftp-hpa.git/","tags":["product"]},{"name":"VulnCheck Advisory: tftp-hpa 5.4 before 6.0 Out-of-Bounds Read via tftpd Remap Jump Rule","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/tftp-hpa-5.4-before-6.0-out-of-bounds-read-via-tftpd-remap-jump-rule"}],"credits":[{"lang":"en","value":"Tristan Madani","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-06T17:15:26.218941Z","id":"CVE-2026-106026","options":[{"Exploitation":"none"},{"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":"2026-10-06T17:15:34.212Z"}}]}}