Falhas do tipo CWE-787

5.159 resultados

Escrita fora dos limites de memória

Ocorre quando um programa escreve dados em um endereço de memória fora da área alocada para um buffer ou variável. O código não valida o tamanho ou índice antes de gravar, permitindo sobrescrita de dados adjacentes, corrupção de estruturas críticas ou execução de código arbitrário.

Exemplo

Um formulário web que copia dados do usuário para um buffer de 256 bytes sem validar o tamanho da entrada. Se o atacante envia 500 bytes, a escrita transborda e sobrescreve a pilha, podendo hijackear o endereço de retorno da função.

Como mitigar

Use funções seguras de cópia (strncpy, strlcpy ao invés de strcpy; memcpy com tamanho máximo explícito) e sempre valide comprimento e índices antes de escrever. Em linguagens modernas, prefira estruturas com bounds-checking automático (arrays em Java, Rust, etc).

CVE-2025-4050HIGHOut of bounds memory access in DevTools in Google Chrome prior to 136.0.7103.59 allowed a remote attacker who convinced a user to engage in EPSS 0.5%CVE-2022-28853HIGHAdobe InDesign 2022 Out-of-Bound Write Arbitrary code executionEPSS 0.5%CVE-2022-28852HIGHAdobe InDesign 2022 Out-of-Bound Write Arbitrary code executionEPSS 0.5%CVE-2026-17168HIGHVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.5%CVE-2025-57812LOW[BIGSLEEP-434612419] CUPS-Filters has heap-buffer-overflow write in `cfImageLut()`EPSS 0.4%CVE-2024-21175HIGHVulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions that are affected areEPSS 0.4%CVE-2024-6615HIGHMemory safety bugs fixed in Firefox 128 and Thunderbird 128EPSS 0.4%CVE-2025-41237CRITICALVMCI integer-underflow vulnerabilityEPSS 0.4%CVE-2026-63387HIGHLibevent: Off-by-one stack buffer overflow in dnsname_to_labels via crafted DNS server responseEPSS 0.4%CVE-2025-41238CRITICALPVSCSI heap-overflow vulnerabilityEPSS 0.4%CVE-2022-48176HIGHNetgear routers R7000P before v1.3.3.154, R6900P before v1.3.3.154, R7960P before v1.4.4.94, and R8000P before v1.4.4.94 were discovered to EPSS 0.4%CVE-2024-23139HIGHActionScript Byte Code “ABC” Vulnerability in the Autodesk FBX Review softwareEPSS 0.4%CVE-2024-53003HIGHSubstance3D - Modeler | Out-of-bounds Write (CWE-787)EPSS 0.4%CVE-2022-46322HIGHSome smartphones have the out-of-bounds write vulnerability. Successful exploitation of this vulnerability may cause system service exceptioEPSS 0.4%CVE-2026-63638HIGHOpenImageIO: Cineon invalid bit depth heap out-of-bounds writeEPSS 0.4%CVE-2026-54715HIGHGoAccess: Heap Out-of-Bounds Write in parse_browser()EPSS 0.4%CVE-2026-16929MEDIUMIBM i is Affected By Multiple Vulnerabilities in Host ServersEPSS 0.4%CVE-2026-9910HIGHOut of bounds memory access in ANGLE in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sEPSS 0.4%CVE-2018-1171—This vulnerability allows local attackers to escalate privileges on vulnerable installations of Joyent SmartOS release-20170803-20170803T064EPSS 0.4%CVE-2022-48281MEDIUMprocessCropSelections in tools/tiffcrop.c in LibTIFF through 4.5.0 has a heap-based buffer overflow (e.g., "WRITE of size 307203") via a craEPSS 0.4%