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CVE-2025-71450 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:3.3 LOWVector:CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://hackmd.io/@haindpwn/cve-2025-71450-inih-long-line-discard-oob-read#Detailed-attack-steps	CISA-ADP
https://github.com/benhoyt/inih/blob/r62/ini.c#L162-L169	[email protected]
https://github.com/benhoyt/inih/commit/8e06f6b77b5d4471bdc6d85ada81b67d37354a5c	[email protected]
https://github.com/benhoyt/inih/issues/223	[email protected]
https://github.com/benhoyt/inih/pull/206	[email protected]
https://github.com/benhoyt/inih/releases/tag/r63	[email protected]
https://hackmd.io/@haindpwn/inih-long-line-discard-oob-read	[email protected]
https://www.vulncheck.com/advisories/inih-before-r63-stack-buffer-under-read-in-ini-parse-stream-discard-loop	[email protected]

see all 8 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-127	Buffer Under-read	[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

3 change records found show changes

Date	Action	Recorded By
Nov 6, 2026	CVE Modified	CISA-ADP
Nov 4, 2026	CVE Translated	[email protected]
Nov 2, 2026	New CVE Received	[email protected]