Fallos del tipo CWE-787

5847 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-2022-42932HIGHMozilla developers Ashley Hale and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 105 and Firefox ESR 102.3. Some oEPSS 0.8%CVE-2025-20634HIGHIn Modem, there is a possible out of bounds write due to a missing bounds check. This could lead to remote code execution, if a UE has conneEPSS 0.8%CVE-2026-20664MEDIUMThe issue was addressed with improved memory handling. This issue is fixed in Safari 26.4, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, visioEPSS 0.8%CVE-2024-30355HIGHFoxit PDF Reader AcroForm Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.8%CVE-2024-30348HIGHFoxit PDF Reader U3D File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.8%CVE-2026-108457HIGHMicrosoft Windows PDF Remote Code Execution VulnerabilityEPSS 0.8%CVE-2019-14821HIGHAn out-of-bounds access issue was found in the Linux kernel, all versions through 5.3, in the way Linux kernel's KVM hypervisor implements tEPSS 0.8%CVE-2022-46709CRITICALA memory corruption issue was addressed with improved state management. This issue is fixed in macOS Ventura 13, iOS 16. An app may be able EPSS 0.8%CVE-2023-34293HIGHAshlar-Vellum Cobalt Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.8%CVE-2024-30949CRITICALAn issue in newlib v.4.3.0 allows an attacker to execute arbitrary code via the time unit scaling in the _gettimeofday function.EPSS 0.8%CVE-2022-4920CRITICALHeap buffer overflow in Blink in Google Chrome prior to 101.0.4951.41 allowed a remote attacker who convinced a user to engage in specific UEPSS 0.8%CVE-2022-38582MEDIUMIncorrect access control in the anti-virus driver wsdkd.sys of Watchdog Antivirus v1.4.158 allows attackers to write arbitrary files.EPSS 0.8%CVE-2021-33681MEDIUMSAP 3D Visual Enterprise Viewer, version - 9, allows a user to open manipulated CGM file received from untrusted sources which causes out ofEPSS 0.8%CVE-2019-25362CRITICALWMV to AVI MPEG DVD WMV Convertor 4.6.1217 - Buffer OverFlowEPSS 0.8%CVE-2026-96224HIGH.NET Remote Code Execution VulnerabilityEPSS 0.8%CVE-2023-49552HIGHAn Out of Bounds Write in Cesanta mjs 2.20.0 allows a remote attacker to cause a denial of service via the mjs_op_json_stringify function inEPSS 0.8%CVE-2025-41679MEDIUMUnauthenticated Buffer Overflow in Conftool Service Leading to Denial of ServiceEPSS 0.8%CVE-2023-32397—A logic issue was addressed with improved state management. This issue is fixed in iOS 15.7.6 and iPadOS 15.7.6, macOS Big Sur 11.7.7, macOSEPSS 0.8%CVE-2023-50227HIGHParallels Desktop virtio-gpu Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.8%CVE-2023-30368CRITICALTenda AC5 V15.03.06.28 is vulnerable to Buffer Overflow via the initWebs function.EPSS 0.8%