Weaknesses of type CWE-787

5,847 results

Escrita fora dos limites da memória

Ocorre quando o código escreve dados em um endereço de memória fora do intervalo alocado para uma estrutura (array, buffer, objeto). O programa não valida o tamanho ou índice antes de escrever, permitindo sobrescrever memória adjacente — causando corrupção de dados, queda da aplicação ou execução arbitrária de código.

Example

Um formulário web que copia o valor de um campo do usuário para um buffer de 64 bytes sem verificar o comprimento: se o atacante enviar 200 caracteres, a escrita invade a memória vizinha e pode sobrescrever um ponteiro de função ou variável crítica.

How to mitigate

Sempre validar tamanhos de entrada antes de copiar (usar `strncpy` em vez de `strcpy`, ou bibliotecas seguras como `bounds-checking`); usar linguagens com verificação automática de limites (Java, Rust); aplicar testes de fuzzing e análise estática de código para detectar escritas desprotegidas.

CVE-2023-30369CRITICALTenda AC15 V15.03.05.19 is vulnerable to Buffer Overflow.EPSS 0.8%CVE-2023-30371CRITICALIn Tenda AC15 V15.03.05.19, the function "sub_ED14" contains a stack-based buffer overflow vulnerability.EPSS 0.8%CVE-2023-30378CRITICALIn Tenda AC15 V15.03.05.19, the function "sub_8EE8" contains a stack-based buffer overflow vulnerability.EPSS 0.8%CVE-2023-30376CRITICALIn Tenda AC15 V15.03.05.19, the function "henan_pppoe_user" contains a stack-based buffer overflow vulnerability.EPSS 0.8%CVE-2023-30368CRITICALTenda AC5 V15.03.06.28 is vulnerable to Buffer Overflow via the initWebs function.EPSS 0.8%CVE-2023-31568HIGHPodofo v0.10.0 was discovered to contain a heap buffer overflow via the component PoDoFo::PdfEncryptRC4::PdfEncryptRC4.EPSS 0.8%CVE-2023-40308HIGHMemory Corruption vulnerability in SAP CommonCryptoLibEPSS 0.8%CVE-2026-16975HIGHIBM i is Affected By A Remote Code Execution Vulnerability []EPSS 0.8%CVE-2026-17223HIGHIBM i is Affected By Multiple Vulnerabilities in Host ServersEPSS 0.8%CVE-2023-29090MEDIUMAn issue was discovered in Samsung Exynos Mobile Processor, Automotive Processor and Modem for Exynos Modem 5123, Exynos Modem 5300, Exynos EPSS 0.8%CVE-2023-29088MEDIUMAn issue was discovered in Samsung Exynos Mobile Processor, Automotive Processor and Modem for Exynos Modem 5123, Exynos Modem 5300, Exynos EPSS 0.8%CVE-2018-10878MEDIUMA flaw was found in the Linux kernel's ext4 filesystem. A local user can cause an out-of-bounds write and a denial of service or unspecifiedEPSS 0.8%CVE-2022-22764HIGHMozilla developers Paul Adenot and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 96 and Firefox ESR 91.5. Some of EPSS 0.7%CVE-2022-45421HIGHMozilla developers Andrew McCreight and Gabriele Svelto reported memory safety bugs present in Thunderbird 102.4. Some of these bugs showed EPSS 0.7%CVE-2024-30349HIGHFoxit PDF Reader U3D File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.7%CVE-2022-30904HIGHIn Bestechnic Bluetooth Mesh SDK (BES2300) V1.0, a buffer overflow vulnerability can be triggered during provisioning, because there is no cEPSS 0.7%CVE-2026-105005HIGHWindows Schannel Remote Code Execution VulnerabilityEPSS 0.7%CVE-2022-34424HIGHNetworking OS10, versions 10.5.1.x, 10.5.2.x, and 10.5.3.x contain a vulnerability that could allow an attacker to cause a system crash by rEPSS 0.7%CVE-2026-112510HIGHAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.EPSS 0.7%CVE-2023-31567HIGHPodofo v0.10.0 was discovered to contain a heap buffer overflow via the component PoDoFo::PdfEncryptAESV3::PdfEncryptAESV3.EPSS 0.7%