Fallos del tipo CWE-787

5859 resultados

Escrita fora dos limites de memória

Ocorre quando um programa escreve dados em uma posição de memória fora do intervalo alocado para um buffer, array ou estrutura. O atacante aproveita para sobrescrever dados adjacentes (variáveis, ponteiros, pilha de retorno), alterando o comportamento da aplicação ou assumindo controle total do sistema.

Ejemplo

Um programa lê 256 bytes de entrada do usuário e copia para um buffer de 64 bytes sem validação. O atacante envia 300 bytes, que transbordam o buffer e sobrescrevem o endereço de retorno na pilha, permitindo execução de código arbitrário.

Cómo mitigar

Sempre validar tamanho de entrada contra o limite do buffer antes de copiar (usar strncpy, snprintf em vez de strcpy, sprintf). Em linguagens modernas, usar estruturas bounds-checked (Rust, C# arrays) ou linters que detectem padrões perigosos.

CVE-2024-23610HIGHOut of Bounds Write Due to Missing Bounds Check in LabVIEWEPSS 0.6%CVE-2026-58184HIGHApache Traffic Server: header_rewrite plugin cookie handling can corrupt memoryEPSS 0.6%CVE-2022-39806—Due to lack of proper memory management, when a victim opens a manipulated SolidWorks Drawing (.slddrw, CoreCadTranslator.exe) file receivedEPSS 0.6%CVE-2026-84286CRITICALOOB Read/Write via Negative Array Index in exllamav3_ext Kernel TableEPSS 0.6%CVE-2026-6100CRITICALUse-after-free in lzma.LZMADecompressor, bz2.BZ2Decompressor, and gzip.GzipFile after re-use under memory pressureEPSS 0.6%CVE-2016-8617LOWThe base64 encode function in curl before version 7.51.0 is prone to a buffer being under allocated in 32bit systems if it receives at leastEPSS 0.6%CVE-2025-1016CRITICALMemory safety bugs fixed in Firefox 135, Thunderbird 135, Firefox ESR 115.20, Firefox ESR 128.7, Thunderbird 115.20, and Thunderbird 128.7EPSS 0.6%CVE-2023-7272HIGHEclipse Parsson stack overflow with deeply nested objectsEPSS 0.6%CVE-2026-58177HIGHApache Traffic Server: Memory-safety and path-traversal errors in the Cripts frameworkEPSS 0.6%CVE-2021-36489MEDIUMBuffer Overflow vulnerability in Allegro through 5.2.6 allows attackers to cause a denial of service via crafted PCX/TGA/BMP files to allegrEPSS 0.6%CVE-2026-43748CRITICALAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.EPSS 0.6%CVE-2023-1222HIGHHeap buffer overflow in Web Audio API in Google Chrome prior to 111.0.5563.64 allowed a remote attacker to potentially exploit heap corruptiEPSS 0.6%CVE-2022-1841HIGHOut-of-bound write in tcp_flagsEPSS 0.6%CVE-2026-64784MEDIUMAn out-of-bounds access issue was addressed with improved bounds checking. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7EPSS 0.6%CVE-2026-65334MEDIUMA memory corruption issue was addressed with improved state management. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10EPSS 0.6%CVE-2026-58187MEDIUMApache Traffic Server: Multiplexer plugin chunk decoder enables a denial of serviceEPSS 0.6%CVE-2022-39803—Due to lack of proper memory management, when a victim opens a manipulated ACIS Part and Assembly (.sat, CoreCadTranslator.exe) file receiveEPSS 0.6%CVE-2026-113950MEDIUMAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 27.2 and iPadOS 27.2, macOS Golden GateEPSS 0.6%CVE-2022-39804—Due to lack of proper memory management, when a victim opens a manipulated SolidWorks Part (.sldprt, CoreCadTranslator.exe) file received frEPSS 0.6%CVE-2024-44242CRITICALThe issue was addressed with improved bounds checks. This issue is fixed in iOS 18.1 and iPadOS 18.1, macOS Sequoia 15.1. An attacker may beEPSS 0.6%