CVE-2025-71450

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.

CVSS v3 3.3 LOW

3.3^/10

CVSS v3 : LOW

Vector :

Exploitability : 1.8 / Impact : 1.4

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://github.com/benhoyt/inih/blob/r62/ini.c#L162-L169
https://github.com/benhoyt/inih/commit/8e06f6b77b5d4471bdc6d85ada81b67d37354a5c
https://github.com/benhoyt/inih/issues/223
https://github.com/benhoyt/inih/pull/206
https://github.com/benhoyt/inih/releases/tag/r63
https://hackmd.io/@haindpwn/inih-long-line-discard-oob-read
https://www.vulncheck.com/advisories/inih-before-r63-stack-buffer-under-read-in-ini-parse-stream-discard-loop

Configurations

No configuration.

History

02 Nov 2026, 15:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-11-02 15:17

Updated : 2026-11-02 19:34

NVD link : CVE-2025-71450

Mitre link : CVE-2025-71450

CVE.ORG link : CVE-2025-71450

JSON object : View

Products Affected

No product.

CWE

CWE-127

Buffer Under-read

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