Falhas do tipo CWE-787

5.202 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-2026-1837HIGHlibjxl: Out-of-bounds write in grayscale color transformation when using LCMS2EPSS 0.3%CVE-2024-46919MEDIUMAn issue was discovered in Samsung Mobile Processor Exynos 9820, 9825, 980, 990, 850, 1080, 2100, and 1280. Lack of a length check leads to EPSS 0.3%CVE-2026-15390CRITICALOut-of-bounds write in Das U-BootEPSS 0.3%CVE-2024-22562HIGHswftools 0.9.2 was discovered to contain a Stack Buffer Underflow via the function dict_foreach_keyvalue at swftools/lib/q.c.EPSS 0.3%CVE-2026-0149HIGHIn RtpSession::rtpSendRtcpPacket, there is a possible OOB write due to a heap buffer overflow. This could lead to remote code execution withEPSS 0.3%CVE-2026-41676HIGHrust-openssl: Deriver::derive and PkeyCtxRef::derive can overflow short buffers on OpenSSL 1.1.1EPSS 0.3%CVE-2024-27050HIGHlibbpf: Use OPTS_SET() macro in bpf_xdp_query()EPSS 0.3%CVE-2026-0200HIGHIn Cellular Modem, there is a possible out-of-bounds write due to a heap buffer overflow. This could lead to remote escalation of privilege EPSS 0.3%CVE-2024-45780MEDIUMGrub2: fs/tar: integer overflow causes heap oob writeEPSS 0.3%CVE-2022-32865HIGHThe issue was addressed with improved memory handling. This issue is fixed in iOS 16, macOS Ventura 13. An app may be able to execute arbitrEPSS 0.3%CVE-2021-47781MEDIUMCmder Console Emulator 1.3.18 - 'Cmder.exe' Denial of Service (PoC)EPSS 0.3%CVE-2026-18289HIGHOriginLab OriginPro OPJ File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2025-21157HIGHInDesign Desktop | Out-of-bounds Write (CWE-787)EPSS 0.3%CVE-2026-18293HIGHOriginLab Origin Viewer OPJ File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2022-43667HIGHStack-based buffer overflow vulnerability exists in CX-Programmer v.9.77 and earlier, which may lead to information disclosure and/or arbitrEPSS 0.3%CVE-2025-24452HIGHInDesign Desktop | Out-of-bounds Write (CWE-787)EPSS 0.3%CVE-2023-46835MEDIUMx86/AMD: mismatch in IOMMU quarantine page table levelsEPSS 0.3%CVE-2025-30464HIGHAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5, maEPSS 0.3%CVE-2026-18290HIGHOriginLab OriginPro OGG File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2022-26513HIGHOut-of-bounds write in some Intel(R) XMM(TM) 7560 Modem software before version M2_7560_R_01.2146.00 may allow an unauthenticated user to poEPSS 0.3%