Falhas do tipo CWE-119

3.289 resultados

Corrupção de Memória Genérica

É uma categoria abrangente que descreve qualquer acesso indevido à memória — escrever fora dos limites de um buffer, ler dados não inicializados, ou manipular ponteiros inválidos. O risco é grave: permite execução de código arbitrário, travamento da aplicação ou exposição de dados sensíveis.

Exemplo

Um programa em C copia dados do usuário para um array sem validar o tamanho (strcpy em vez de strncpy). Um atacante envia uma string maior que o buffer, sobrescrevendo dados adjacentes ou até o endereço de retorno da função, permitindo injetar código malicioso.

Como mitigar

Use funções seguras (strncpy, snprintf, memmove com limites explícitos), valide e sanitize toda entrada antes de copiar, ative canários de pilha e ASLR no SO, e aplique sanitizadores (ASAN, UBSAN) durante desenvolvimento e testes. Em linguagens seguras (Rust, Python) o problema é praticamente eliminado.

CVE-2022-34417HIGH Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious userEPSS 0.2%CVE-2026-6491MEDIUMlibvips nip2 vips7compat.c im_minpos_vec heap-based overflowEPSS 0.2%CVE-2026-18784MEDIUMo6 open62541 ua_client_highlevel.c UA_Client_readNodeClassAttribute heap-based overflowEPSS 0.2%CVE-2022-34411HIGH Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious userEPSS 0.2%CVE-2022-34414HIGH Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious userEPSS 0.2%CVE-2022-34418HIGH Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious userEPSS 0.2%CVE-2022-34413HIGH Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious userEPSS 0.2%CVE-2022-34423HIGH Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious userEPSS 0.2%CVE-2022-34407HIGH Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious userEPSS 0.2%CVE-2022-34421HIGH Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious userEPSS 0.2%CVE-2022-34420HIGH Dell PowerEdge BIOS and Dell Precision BIOS contain an Improper SMM communication buffer verification vulnerability. A local malicious userEPSS 0.2%CVE-2024-4162MEDIUMKW Watcher Vulnerability ALlows Malicious Read Access to MemoryEPSS 0.2%CVE-2025-15666MEDIUMOpen Asset Import Library Assimp Model File SceneCombiner.cpp Copy heap-based overflowEPSS 0.2%CVE-2026-8258MEDIUMSquirrel sqstdstring.cpp validate_format stack-based overflowEPSS 0.2%CVE-2026-5236MEDIUMAxiomatic Bento4 DSI v1 Ap4Dac4Atom.cpp SkipBits heap-based overflowEPSS 0.2%CVE-2026-5235MEDIUMAxiomatic Bento4 MP4 File Ap4Dac4Atom.cpp ReadCache heap-based overflowEPSS 0.2%CVE-2026-33851HIGHImproper Restriction of Operations within the Bounds of a Memory Buffer in joncampbell123 doslibEPSS 0.2%CVE-2026-19886HIGHOriginLab Origin Viewer OGM File Parsing Memory Corruption Remote Code Execution VulnerabilityEPSS 0.2%CVE-2026-5185MEDIUMNothings stb_image Multi-frame GIF File stb_image.h stbi__gif_load_next heap-based overflowEPSS 0.2%CVE-2026-91090LOWGPAC base_scenegraph.c gf_node_activate_ex stack-based overflowEPSS 0.2%