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    CVE-2026-4046

    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:Mar 30, 2026
    Last Modified:Apr 20, 2026
    EPS:Mar 30, 2026
    EPSS Score:0.00046
    CVSS Score:7.5

    Affected Products

    Vendor
    Gnu
    Product
    Glibc
    Vendor
    The Gnu C Library
    Product
    Glibc

    Exploits

    https://sourceware.org/bugzilla/show_bug.cgi?id=33980

    Common Weakness Enumeration

    CWE-617 Reachable Assertion

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High