Fallos del tipo CWE-787

5171 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-2022-2988MEDIUMA CWE-787: Out-of-bounds Write vulnerability exists that could cause sensitive information leakage when accessing a malicious web page from EPSS 0.4%CVE-2020-37208MEDIUMSpotFTP FTP Password Recovery 3.0.0.0 - 'Key' Denial of ServiceEPSS 0.4%CVE-2026-76880HIGHOut-of-bounds Write in WiresharkEPSS 0.4%CVE-2026-17544HIGHOut-of-bounds write in bccomp() via crafted operand and scaleEPSS 0.4%CVE-2023-52725MEDIUMOpen Networking Foundation SD-RAN ONOS onos-kpimon 0.4.7 allows blocking of the errCh channel within the Start function of the monitoring paEPSS 0.4%CVE-2023-39489HIGHPDF-XChange Editor TIF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-84526MEDIUMAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7 and iPadOS 26.7, iOS 27 and iPadOSEPSS 0.4%CVE-2026-17502HIGHIBM i is Affected By Multiple Vulnerabilities in NetServerEPSS 0.4%CVE-2026-8558HIGHOut of bounds write in Fonts in Google Chrome prior to 148.0.7778.168 allowed a remote attacker to execute arbitrary code inside a sandbox vEPSS 0.4%CVE-2024-12695HIGHOut of bounds write in V8 in Google Chrome prior to 131.0.6778.204 allowed a remote attacker to execute arbitrary code inside a sandbox via EPSS 0.4%CVE-2025-9809HIGHOut-of-bounds write in cdfs_open_cue_track in libretro libretro-common latest on all platforms allows remote attackers to execute arbitrary EPSS 0.4%CVE-2021-32142HIGHBuffer Overflow vulnerability in LibRaw linux/unix v0.20.0 allows attacker to escalate privileges via the LibRaw_buffer_datastream::gets(chaEPSS 0.4%CVE-2026-9973HIGHOut of bounds write in V8 in Google Chrome prior to 148.0.7778.216 allowed a remote attacker to execute arbitrary code inside a sandbox via EPSS 0.4%CVE-2024-46261HIGHcute_png v1.05 was discovered to contain a heap buffer overflow via the cp_make32() function at cute_png.h.EPSS 0.4%CVE-2024-46258HIGHcute_png v1.05 was discovered to contain a heap buffer overflow via the cp_load_png_mem() function at cute_png.h.EPSS 0.4%CVE-2024-32639HIGHA vulnerability has been identified in Tecnomatix Plant Simulation V2302 (All versions < V2302.0011). The affected application contains an oEPSS 0.4%CVE-2026-59982HIGHOpenEXR: DWAA InputFile AC buffer overflow on ILP32 platformsEPSS 0.4%CVE-2024-23146HIGHMultiple Vulnerabilities in the Autodesk AutoCAD Desktop SoftwareEPSS 0.4%CVE-2024-23144HIGHMultiple Vulnerabilities in the Autodesk AutoCAD Desktop SoftwareEPSS 0.4%CVE-2025-11709CRITICALOut of bounds read/write in a privileged process triggered by WebGL texturesEPSS 0.4%