CVE-2026-57053

MEDIUM EPSS 2.0%

Published Jun 23, 20261w ago · Modified Jun 23, 20261w ago

4.0 CVSS 3.1

Medium

Published Jun 23, 2026 1w ago

Last Modified Jun 23, 2026 1w ago

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.

CVSS Details

Base Score

4.0

Exploitability

1.4

Impact

2.5

Vector string

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

Attack Vector Local

Attack Complexity High

Privileges Required None

User Interaction None

Scope Unchanged

Confidentiality None

Integrity Low

Availability Low

Threat Intelligence

EPSS Exploit Probability

2.0% percentile

Exploit & Patch Status

No Known Exploit

No Patch Available

Weaknesses 1

CWE-1284

References 2

lists.gnu.org https://lists.gnu.org/archive/html/help-libidn/2026-05/msg00000.html
lists.gnu.org https://lists.gnu.org/archive/html/help-libidn/2026-06/msg00001.html

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.