Stack-Based Buffer Overflow in GCC libstdc++ Affects Multiple Applications

CVE-2026-115455

What is CVE-2026-115455?

A vulnerability has been identified in the GCC libstdc++ library, where improper handling of character size and alignment in stack memory allocation during data extraction from a wide-character stream can lead to a stack-based buffer overflow. This can allow an attacker, who provides malicious input to an affected application, to exploit this flaw and potentially cause a denial of service (DoS) condition.

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