CVE-2026-57053

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Summary

CVECVE-2026-57053
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-06-23 18:18:10 UTC
Updated2026-06-25 20:16:05 UTC
DescriptionGNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idna_to_unicode_internal. The affected code is not present in libidn2.

Risk And Classification

Primary CVSS: v3.1 4 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

EPSS: 0.001170000 probability, percentile 0.019510000 (date 2026-06-25)

Problem Types: CWE-1284 | CWE-1284 CWE-1284 Improper Validation of Specified Quantity in Input

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
3.1CNACVSS4MEDIUMCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
Low

CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GNU Libidn affected 1.44 custom Not specified

References

ReferenceSourceLinkTags
lists.gnu.org/archive/html/help-libidn/2026-06/msg00001.html [email protected] lists.gnu.org
lists.gnu.org/archive/html/help-libidn/2026-05/msg00000.html [email protected] lists.gnu.org
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