CVE-2026-57053

medium

Description

GNU 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.

References

https://lists.gnu.org/archive/html/help-libidn/2026-06/msg00001.html

https://lists.gnu.org/archive/html/help-libidn/2026-05/msg00000.html

Details

Source: Mitre, NVD

Published: 2026-06-23

Updated: 2026-06-23

Risk Information

CVSS v2

Base Score: 2.6

Vector: CVSS2#AV:L/AC:H/Au:N/C:N/I:P/A:P

Severity: Low

CVSS v3

Base Score: 4

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

Severity: Medium

Detections

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