CVE-2026-4046
7.5
HIGH
CVSS 3.1
EPSS 0.36%
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.
How to fix CVE-2026-4046
To remediate CVE-2026-4046, upgrade the affected package to a fixed version below.
- —upgrade to 2.31-13+deb11u14 or later
Is CVE-2026-4046 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.31-13+deb11u14
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |