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CVE-2025-71450

4.8 mediumEPSS 0.1%

Medium (4.8) in benhoyt inih. EPSS 0.1% estimated probability of exploitation activity in the next 30 days.

On this page
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.

Severity

CVSS 4.0

4.8 medium
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

CVSS 3.1

3.3 low
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
EPSS
0.1% (unchanged from 0.1% a week ago) estimated probability of exploitation activity in the next 30 days; 2nd percentile. Scored 2026-11-10. A forecast for this CVE across the internet, not for your own systems.
CISA's assessment (SSVC)
Exploitation: PoC · Automatable: no · Technical impact: partial, assessed 2026-11-06. From CISA's Vulnrichment in the CVE List: whether it is exploited, whether exploiting it can be automated, and how much control it gives.
CWE
CWE-127 Buffer Under-read
Published
Modified
NVD analysis
Awaiting analysis
Record from
the NVD, synced

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Affected

Versions

From the CNA's record in the CVE List.

ProductAffected
benhoyt inihbefore r63

Linux distributions

DistributionReleasePackageFixed inAdvisory
Ubuntu18.04:LTS, 20.04:LTS, 22.04:LTS and 3 morelibinihno fix listedUBUNTU-CVE-2025-71450
openSUSETumbleweedinih63-1.1openSUSE-SU-2026:12432-1

From the distributions' data via OSV.dev: Ubuntu Security Notices © Canonical Ltd., CC BY-SA 4.0; SUSE security data, CC BY 4.0. Modified: reformatted and linked to CVE records. Credits. On the distributions' own pages: Ubuntu · openSUSE.

References

Check your stackJSON