{"id":"CVE-2025-71450","title":"inih before r63 Stack Buffer Under-Read in ini_parse_stream Discard Loop","summary":"inih before r63 contains a one-byte stack buffer under-read in ini_parse_stream() in ini.c that allows attackers to read abyss[-1] via an embedded NUL byte after an overlong line. Attackers can supply an INI file or string with a line of…","severity":"low","cvss":3.3,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L","cvssSource":"cna","cwe":["CWE-127"],"vendor":"benhoyt","product":"inih","affected":["inih < r63"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-06T19:22:12.946222Z"},"exploitAvailable":true,"published":"2026-11-02","updated":"2026-11-06","sourceUpdated":"2026-11-06T19:22:48.149Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-71450","references":[{"url":"https://github.com/benhoyt/inih/pull/206"},{"url":"https://github.com/benhoyt/inih/issues/223"},{"url":"https://github.com/benhoyt/inih/commit/8e06f6b77b5d4471bdc6d85ada81b67d37354a5c"},{"url":"https://github.com/benhoyt/inih/blob/r62/ini.c#L162-L169"},{"url":"https://github.com/benhoyt/inih/releases/tag/r63","label":"inih r63 Release Notes"},{"url":"https://hackmd.io/@haindpwn/inih-long-line-discard-oob-read"},{"url":"https://www.vulncheck.com/advisories/inih-before-r63-stack-buffer-under-read-in-ini-parse-stream-discard-loop","label":"VulnCheck Advisory: inih before r63 Stack Buffer Under-Read in ini_parse_stream Discard Loop"}],"tags":["cve.org","exploit-available"],"epss":0.00127,"epssPercentile":0.0237,"ingestedAt":"2026-11-05T19:30:42.651Z","slug":"CVE-2025-71450","body":"## Overview\n\ninih before r63 contains a one-byte stack buffer under-read in ini_parse_stream() in ini.c that allows attackers to read abyss[-1] via an embedded NUL byte after an overlong line. Attackers can supply an INI file or string with a line of at least INI_MAX_LINE-1 bytes followed by a NUL byte, causing undefined behavior reported by memory sanitizers.\n\n## Affected\n\n- `inih < r63`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":30,"depthScoreParts":{"impact":18.2,"likelihood":0,"exploitation":12,"ransomware":0},"changes":[{"seq":235614,"id":"CVE-2025-71450","ts":1793995424506,"field":"exploit_available","old":"false","new":"true"}]}