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Loading vulnerability database

BACK TO VEDB

CVE-2026-122054: The GNU C Library glibc: Converting crafted BIG-HKSCS input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU…

Name: CVE-2026-122054: The GNU C Library glibc: Converting crafted BIG-HKSCS input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU…
Creator: Rapid7
Published: 2026-11-04T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-122054, CWE-835, CVSS 5.9

REQUEST DEMO

Converting crafted BIG-HKSCS input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU C Library version 2.18 through 2.31 may result in the converter making no progress, causing the calling application to hang.

CVSS Details

CVSS 3.1 Base Score: 5.9
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H)

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CVE details

CVSS v4 ScoreN/A

CVSS v3 Score

5.9 Medium

EPSS ScoreN/A

EPSS PercentileN/A

In CISA KEV CatalogueFalse

Published

Nov 4, 2026

References

MITRE ↗
NVD ↗

MDR Buyer's Guide

Global Threat Landscape Report