CVE-2025-71450

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    CVE-2025-71450

    Published: 2 Nov 2026Last Modified: 8 Nov 2026

    Summary: inih before r63 Stack Buffer Under-Read in ini_parse_stream Discard Loop

    Details: 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 at least INI_MAX_LINE-1 bytes followed by a NUL byte, causing undefined behavior reported by memory sanitizers.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/71xxx/CVE-2025-71450.json, https://github.com/benhoyt/inih/releases/tag/r63, https://nvd.nist.gov/vuln/detail/CVE-2025-71450, https://www.vulncheck.com/advisories/inih-before-r63-stack-buffer-under-read-in-ini-parse-stream-discard-loop, https://github.com/benhoyt/inih/issues/223, https://github.com/benhoyt/inih/commit/8e06f6b77b5d4471bdc6d85ada81b67d37354a5c, https://github.com/benhoyt/inih/pull/206, https://github.com/benhoyt/inih, https://github.com/benhoyt/inih/blob/r62/ini.c#L162-L169, https://hackmd.io/@haindpwn/inih-long-line-discard-oob-read, https://hackmd.io/@haindpwn/cve-2025-71450-inih-long-line-discard-oob-read#Detailed-attack-steps

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -611ab51f8dd7ec583543815b0de693495045fbf8

    Affected versions

    r62

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2025-71450 | CVE-DB