Description
The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application.



This vulnerability can be trivially mitigated by removing the IBM1390 and IBM1399 character sets from systems that do not need them.
Published: 2026-03-30
Score: 7.5 High
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
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History

Mon, 30 Mar 2026 18:15:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 30 Mar 2026 17:45:00 +0000


Mon, 30 Mar 2026 17:30:00 +0000

Type Values Removed Values Added
Description The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application. This vulnerability can be trivially mitigated by removing the IBM1390 and IBM1399 character sets from systems that do not need them.
Title iconv crash due to assertion failure with untrusted input
Weaknesses CWE-617
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: glibc

Published:

Updated: 2026-03-30T17:37:52.633Z

Reserved: 2026-03-12T10:12:32.994Z

Link: CVE-2026-4046

cve-icon Vulnrichment

Updated: 2026-03-30T17:35:44.684Z

cve-icon NVD

Status : Received

Published: 2026-03-30T18:16:19.573

Modified: 2026-03-30T18:16:19.573

Link: CVE-2026-4046

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

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Weaknesses