Fallos del tipo CWE-787

5859 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-2026-116569HIGHFreeSWITCH: Pre-authentication out-of-bounds write in MSRP message body parsingEPSS 0.6%CVE-2026-90559HIGHsnappy-java through 1.1.10.8 Out-of-Bounds Write via uncompressEPSS 0.6%CVE-2026-33815CRITICALCVE-2026-33815 in github.com/jackc/pgxEPSS 0.6%CVE-2024-7519HIGHInsufficient checks when processing graphics shared memory could have led to memory corruption. This could be leveraged by an attacker to peEPSS 0.6%CVE-2024-49195CRITICALMbed TLS 3.5.x through 3.6.x before 3.6.2 has a buffer underrun in pkwrite when writing an opaque key pairEPSS 0.6%CVE-2024-41461CRITICALTenda FH1201 v1.2.0.14 was discovered to contain a stack-based buffer overflow vulnerability via the list1 parameter at ip/goform/DhcpListClEPSS 0.6%CVE-2023-37557MEDIUMCODESYS Heap-based Buffer Overflow in multiple productsEPSS 0.6%CVE-2025-25742CRITICALD-Link DIR-853 A1 FW1.20B07 was discovered to contain a stack-based buffer overflow vulnerability via the AccountPassword parameter in the SEPSS 0.6%CVE-2022-25972HIGHAn out-of-bounds write vulnerability exists in the gif2h5 functionality of HDF5 Group libhdf5 1.10.4. A specially-crafted GIF file can lead EPSS 0.6%CVE-2021-46764HIGHImproper validation of DRAM addresses in SMU may allow an attacker to overwrite sensitive memory locations within the ASP potentially resultEPSS 0.6%CVE-2022-32812HIGHThe issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.5, macOS Big Sur 11.6.8, Security Update 202EPSS 0.6%CVE-2018-16301—The command-line argument parser in tcpdump before 4.99.0 has a buffer overflow in tcpdump.c:read_infile(). To trigger this vulnerability thEPSS 0.6%CVE-2022-41202HIGHDue to lack of proper memory management, when a victim opens a manipulated Visual Design Stream (.vds, vds.x3d) file received from untrustedEPSS 0.6%CVE-2022-41198—Due to lack of proper memory management, when a victim opens a manipulated SketchUp (.skp, SketchUp.x3d) file received from untrusted sourceEPSS 0.6%CVE-2022-41189HIGHDue to lack of proper memory management, when a victim opens a manipulated AutoCAD (.dwg, TeighaTranslator.exe) file received from untrustedEPSS 0.6%CVE-2022-41200—Due to lack of proper memory management, when a victim opens a manipulated Scalable Vector Graphic (.svg, svg.x3d) file received from untrusEPSS 0.6%CVE-2025-0236MEDIUMOut-of-bounds vulnerability in slope processing during curve rendering in Generic PCL6 V4 Printer Driver / Generic UFR II V4 Printer Driver EPSS 0.6%CVE-2025-0235MEDIUMOut-of-bounds vulnerability due to improper memory release during image rendering in Generic PCL6 V4 Printer Driver / Generic UFR II V4 PrinEPSS 0.6%CVE-2025-0234MEDIUMOut-of-bounds vulnerability in curve segmentation processing of Generic PCL6 V4 Printer Driver / Generic UFR II V4 Printer Driver / Generic EPSS 0.6%CVE-2023-49427HIGHBuffer Overflow vulnerability in Tenda AX12 V22.03.01.46, allows remote attackers to cause a denial of service (DoS) via list parameter in SEPSS 0.6%