Falhas do tipo CWE-787

5.138 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-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%