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37impact

iconv crash due to assertion failure with untrusted input

The GNU C Library glibc · CVE-2026-4046
0 news outlets0 CERTs and agencies0 researchers

What is it?

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.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
7.5
EPSS
0.7%
First seen
6 d ago
Status
corroborated

All The GNU C Library vulnerabilities