Fallos del tipo CWE-787

5202 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-2023-33613MEDIUMaxTLS v2.1.5 was discovered to contain a heap buffer overflow in the bi_import function in axtls-code/crypto/bigint.c. This vulnerability alEPSS 0.3%CVE-2025-24257HIGHAn out-of-bounds write issue was addressed with improved input validation. This issue is fixed in iOS 18.4 and iPadOS 18.4, macOS Sequoia 15EPSS 0.3%CVE-2022-47519HIGHAn issue was discovered in the Linux kernel before 6.0.11. Missing validation of IEEE80211_P2P_ATTR_OPER_CHANNEL in drivers/net/wireless/micEPSS 0.3%CVE-2018-25252MEDIUMFTP Voyager 16.2.0 Denial of Service via Malformed Site ProfileEPSS 0.3%CVE-2018-9380HIGHIn l2c_lcc_proc_pdu of l2c_fcr.cc, there is a possible out of bounds write due to improper input validation. This could lead to remote escalEPSS 0.3%CVE-2025-58750HIGHrAthena missing bound check in chclif_parse_moveCharSlotEPSS 0.3%CVE-2021-39218MEDIUMOut-of-bounds read/write and invalid free with `externref`s and GC safepoints in WasmtimeEPSS 0.3%CVE-2025-27182HIGHAfter Effects | Out-of-bounds Write (CWE-787)EPSS 0.3%CVE-2025-27183HIGHAfter Effects | Out-of-bounds Write (CWE-787)EPSS 0.3%CVE-2026-24800CRITICALA heap-based buffer over-read or buffer overflow in tildearrow/furnaceEPSS 0.3%CVE-2026-18511HIGHIBM i is Affected By Multiple Vulnerabilities in Java Secure Sockets ExtensionEPSS 0.3%CVE-2023-37336HIGHKofax Power PDF TIF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2023-37334HIGHKofax Power PDF PDF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2024-13048HIGHAshlar-Vellum Cobalt XE File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2023-37337HIGHKofax Power PDF JP2 File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2024-13046HIGHAshlar-Vellum Cobalt CO File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2023-30775MEDIUMA vulnerability was found in the libtiff library. This security flaw causes a heap buffer overflow in extractContigSamples32bits, tiffcrop.cEPSS 0.3%CVE-2022-44513HIGHAcrobat Reader | Out-of-bounds Write (CWE-787)EPSS 0.3%CVE-2022-44512HIGHAcrobat Reader | Out-of-bounds Write (CWE-787)EPSS 0.3%CVE-2023-21597HIGHAdobe InCopy Font Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%