{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-68767","assignerOrgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","state":"PUBLISHED","assignerShortName":"VulnCheck","dateReserved":"2026-07-31T16:10:55.447Z","datePublished":"2026-08-22T14:12:43.477Z","dateUpdated":"2026-08-22T14:12:43.477Z"},"containers":{"cna":{"providerMetadata":{"orgId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","shortName":"VulnCheck","dateUpdated":"2026-08-22T14:12:43.477Z"},"datePublic":"2026-07-31T00:00:00.000Z","title":"hashcat through 7.1.2 Off-by-One Out-of-Bounds Heap Write in fgetl()","descriptions":[{"lang":"en","value":"hashcat's fgetl() function in src/filehandling.c writes a null terminator one byte past the caller's buffer when an input line is exactly the buffer length. Attackers can trigger this out-of-bounds heap write by providing a hash file, potfile, or wordlist containing a line of exactly HCBUFSIZ_LARGE bytes."}],"problemTypes":[{"descriptions":[{"lang":"en","description":"Off-by-one Error","cweId":"CWE-193","type":"CWE"}]}],"affected":[{"vendor":"hashcat","product":"hashcat","defaultStatus":"unaffected","versions":[{"version":"0","lessThanOrEqual":"7.1.2","status":"affected","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:hashcat:hashcat:*:*:*:*:*:*:*:*","versionEndIncluding":"7.1.2"}]}]}],"metrics":[{"format":"CVSS","cvssV4_0":{"version":"4.0","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N","attackVector":"LOCAL","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"PASSIVE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW","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:N/I:L/A:H","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"HIGH","baseScore":6.1,"baseSeverity":"MEDIUM"}}],"references":[{"url":"https://github.com/hashcat/hashcat/issues/4739","tags":["issue-tracking"],"name":"GitHub Issue #4739"},{"url":"https://github.com/hashcat/hashcat","tags":["product"]},{"url":"https://github.com/hashcat/hashcat/commit/93b55d37d3b2340013d4036f10181ddc67d44249","tags":["patch"]},{"url":"https://github.com/hashcat/hashcat/blob/v7.1.2/src/filehandling.c#L1032-L1060","tags":["technical-description"]},{"name":"VulnCheck Advisory: hashcat through 7.1.2 Off-by-One Out-of-Bounds Heap Write in fgetl()","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/hashcat-through-off-by-one-out-of-bounds-heap-write-in-fgetl"}],"credits":[{"lang":"en","value":"Piotr Kowalczyk","type":"finder"}],"x_generator":{"engine":"vulncheck-endgame"}}}}