Falhas do tipo CWE-787

5.171 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-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%