Fallos del tipo CWE-787

5848 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-2023-51968CRITICALTenda AX1803 v1.0.0.1 contains a stack overflow via the adv.iptv.stballvlans parameter in the function getIptvInfo.EPSS 0.7%CVE-2023-51970CRITICALTenda AX1803 v1.0.0.1 contains a stack overflow via the iptv.stb.mode parameter in the function formSetIptv.EPSS 0.7%CVE-2026-112486HIGHAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and EPSS 0.7%CVE-2024-20067CRITICALIn modem, there is a possible out of bounds write due to improper input invalidation. This could lead to remote denial of service with no adEPSS 0.7%CVE-2026-13384HIGHWatchGuard Firebox wgagent Out of Bounds Write VulnerabilityEPSS 0.7%CVE-2024-5508HIGHLuxion KeyShot Viewer KSP File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.7%CVE-2024-5506HIGHLuxion KeyShot Viewer KSP File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.7%CVE-2026-13383HIGHWatchGuard Firebox ikestubd Out of Bounds Write VulnerabilityEPSS 0.7%CVE-2018-10882MEDIUMA flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bound write in in fs/jbd2/transaction.c code, a denEPSS 0.7%CVE-2026-50161CRITICALlibre: Integer overflow in websock_decode() masked frame length check leads to heap buffer overflowEPSS 0.7%CVE-2024-43091CRITICALIn filterMask of SkEmbossMaskFilter.cpp, there is a possible out of bounds write due to an integer overflow. This could lead to remote code EPSS 0.7%CVE-2022-32947HIGHThe issue was addressed with improved memory handling. This issue is fixed in iOS 16.1 and iPadOS 16, macOS Ventura 13, watchOS 9.1. An app EPSS 0.7%CVE-2022-34485CRITICALMozilla developers Bryce Seager van Dyk and the Mozilla Fuzzing Team reported potential vulnerabilities present in Firefox 101. Some of thesEPSS 0.7%CVE-2022-3398HIGHOMRON CX-Programmer Out-of-bounds WriteEPSS 0.7%CVE-2022-3397HIGHOMRON CX-Programmer Out-of-bounds WriteEPSS 0.7%CVE-2022-3396HIGHOMRON CX-Programmer Out-of-bounds WriteEPSS 0.7%CVE-2026-61674CRITICALFluent Bit: Remote stack buffer overflow in Fluent Bit `out_forward` Secure-Forward `PONG` handlerEPSS 0.7%CVE-2023-28176HIGHMemory safety bugs present in Firefox 110 and Firefox ESR 102.8. Some of these bugs showed evidence of memory corruption and we presume thatEPSS 0.7%CVE-2019-25600HIGHUltraVNC Viewer 1.2.2.4 Denial of Service via Buffer OverflowEPSS 0.7%CVE-2026-84383CRITICALlibheif: Heap buffer overflow in `scale_nearest_neighbor()` via duplicate Alpha planes from nested `iden`/`auxl` itemsEPSS 0.7%