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LIBPNG Out-of-Bounds Read/Write Vulnerability in Neon Optimization (CVE-2026-33636)

An out-of-bounds read and write vulnerability in LIBPNG's ARM/AArch64 Neon-optimized palette expansion path (CVE-2026-33636) allows attackers to potentially achieve denial-of-service or arbitrary code execution by crafting malicious PNG images.

libpng png oob CVE-2026-33636 vulnerability defense-evasion privilege-escalation
2r 2t