Fallos del tipo CWE-787

5138 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-2025-41236CRITICALVMXNET3 integer-overflow vulnerabilityEPSS 2.5%CVE-2022-46341HIGHA vulnerability was found in X.Org. This security flaw occurs because the handler for the XIPassiveUngrab request accesses out-of-bounds memEPSS 2.5%CVE-2018-25011—A heap-based buffer overflow was found in libwebp in versions before 1.0.1 in PutLE16().EPSS 2.5%CVE-2021-31342—The ugeom2d.dll library in all versions of Solid Edge SE2020 before 2020MP14 and all versions of Solid Edge SE2021 before SE2021MP5 lack proEPSS 2.5%CVE-2021-31343—The jutil.dll library in all versions of Solid Edge SE2020 before 2020MP14 and all versions of Solid Edge SE2021 before SE2021MP5 lack propeEPSS 2.5%CVE-2023-38231HIGHZDI-CAN-21334: Adobe Acrobat Reader DC Font Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 2.5%CVE-2023-38233HIGHZDI-CAN-21337: Adobe Acrobat Reader DC Font Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 2.5%CVE-2021-27269HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 10.1.0.37527. User interaEPSS 2.5%CVE-2022-44789HIGHA logical issue in O_getOwnPropertyDescriptor() in Artifex MuJS 1.0.0 through 1.3.x before 1.3.2 allows an attacker to achieve Remote Code EEPSS 2.5%CVE-2022-46340HIGHA vulnerability was found in X.Org. This security flaw occurs becuase the swap handler for the XTestFakeInput request of the XTest extensionEPSS 2.5%CVE-2020-7558—A CWE-787 Out-of-bounds Write vulnerability exists in IGSS Definition (Def.exe) version 14.0.0.20247 that could cause Remote Code Execution EPSS 2.5%CVE-2020-7556—A CWE-787 Out-of-bounds Write vulnerability exists in IGSS Definition (Def.exe) version 14.0.0.20247 that could cause Remote Code Execution EPSS 2.5%CVE-2020-7555—A CWE-787 Out-of-bounds Write vulnerability exists in IGSS Definition (Def.exe) version 14.0.0.20247 that could cause Remote Code Execution EPSS 2.5%CVE-2023-21606HIGHAdobe Acrobat Reader DC Font Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 2.5%CVE-2021-44743HIGHAdobe Bridge JPEG2000 Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 2.5%CVE-2019-5092HIGHAn exploitable heap out of bounds write vulnerability exists in the UI tag parsing functionality of the DICOM image format of LEADTOOLS 20.0EPSS 2.5%CVE-2019-6743HIGHThis vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Xiaomi Mi6 Browser prior to 10.4.0. UserEPSS 2.4%CVE-2022-44258HIGHTOTOLINK LR350 V9.3.5u.6369_B20220309 contains a post-authentication buffer overflow via parameter command in the setTracerouteCfg function.EPSS 2.4%CVE-2020-7553—A CWE-787 Out-of-bounds Write vulnerability exists in IGSS Definition (Def.exe) version 14.0.0.20247 that could cause Remote Code Execution EPSS 2.4%CVE-2024-13166HIGHAn out-of-bounds write in Ivanti EPM before the 2024 January-2025 Security Update and 2022 SU6 January-2025 Security Update allows a remote EPSS 2.4%