CVE-2026-4046
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Gnu Glibc
PublishedMar 30, 2026
First seenMar 30, 2026
Weakness typeCWE-617CWE-617
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| gnu glibc | v ≤ 2.43 | — |
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