Falhas do tipo CWE-787

5.176 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-2023-38089HIGHKofax Power PDF clearInterval Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2024-56426HIGHAn issue was discovered in Samsung Mobile Processor and Wearable Processor Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2EPSS 0.4%CVE-2024-37006HIGHMultiple Vulnerabilities in the Autodesk AutoCAD Desktop SoftwareEPSS 0.4%CVE-2026-59091HIGHGimp: gimp: multiple vulnerabilities in file format plugins via crafted image fileEPSS 0.4%CVE-2026-16958MEDIUMVulnerabilities in IBM AIX and PowerVM VIOSEPSS 0.4%CVE-2024-10397HIGHPreallocated buffer overflows in XDR responsesEPSS 0.4%CVE-2026-17255MEDIUMIBM i is Affected By Denial of Service Vulnerability []EPSS 0.4%CVE-2025-26598HIGHXorg: xwayland: out-of-bounds write in createpointerbarrierclient()EPSS 0.4%CVE-2022-42941HIGHA malicious crafted dwf or .pct file when consumed through DesignReview.exe application could lead to memory corruption vulnerability by reaEPSS 0.4%CVE-2026-78952HIGHOut of bounds write in Crashpad in Google Chrome on on Windows prior to 152.0.7977.65 allowed a remote attacker who had compromised the rendEPSS 0.4%CVE-2026-7899HIGHOut of bounds read and write in V8 in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to execute arbitrary code inside a sandEPSS 0.4%CVE-2026-43677MEDIUMAn out-of-bounds write issue was addressed by removing the vulnerable code. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8,EPSS 0.4%CVE-2026-59679CRITICALfs_read_glyphs() heap OOB read/write via encoding array index mismatch in libXfont2EPSS 0.4%CVE-2026-43761MEDIUMAn out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, EPSS 0.4%CVE-2026-59184HIGHOpenEXR: OpenEXRUtil FlatImageChannel row nonzero dataWindow heap OOB writeEPSS 0.4%CVE-2023-5405MEDIUMServer information leak for the CDA Server process memory can occur when an error is generated in response to a specially crafted message. SEPSS 0.4%CVE-2023-4280CRITICALUnvalidated input in Silicon Labs TrustZone implementation leads to accessing Trusted memory regionEPSS 0.4%CVE-2024-23151HIGHMultiple ZDI Vulnerabilities in Autodesk AutoCAD and certain AutoCAD-based productsEPSS 0.4%CVE-2024-39890HIGHAn issue was discovered in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 9820, 9825, 980, 990, 850, 1080, 2100, 1280, 2200,EPSS 0.4%CVE-2026-1788MEDIUMBuffer Overflow in Xquic ServerEPSS 0.4%