Falhas do tipo CWE-787

5.846 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-2022-35028MEDIUMOTFCC commit 617837b was discovered to contain a segmentation violation via /release-x64/otfccdump+0x4fbbb6.EPSS 0.9%CVE-2023-48945HIGHA stack overflow in openlink virtuoso-opensource v7.2.11 allows attackers to cause a Denial of Service (DoS) via crafted SQL statements.EPSS 0.9%CVE-2024-41593CRITICALDrayTek Vigor310 devices through 4.3.2.6 allow a remote attacker to execute arbitrary code via the function ft_payload_dns(), because a byteEPSS 0.9%CVE-2026-96219CRITICALWindows Local Security Authority Subsystem Service (LSASS) Remote Code Execution VulnerabilityEPSS 0.9%CVE-2020-26208MEDIUMHeap-buffer-overflow in jheadEPSS 0.9%CVE-2022-40101HIGHTenda i9 v1.0.0.8(3828) was discovered to contain a buffer overflow via the formWifiMacFilterSet function. This vulnerability allows attackeEPSS 0.9%CVE-2023-22640HIGHA out-of-bounds write vulnerability in Fortinet FortiOS 7.2.0 through 7.2.3, FortiOS 7.0.0 through 7.0.10, FortiOS 6.4.0 through 6.4.11, ForEPSS 0.9%CVE-2022-40105HIGHTenda i9 v1.0.0.8(3828) was discovered to contain a buffer overflow via the formWifiMacFilterGet function. This vulnerability allows attackeEPSS 0.9%CVE-2023-34307HIGHAshlar-Vellum Graphite VC6 File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.9%CVE-2022-43259HIGHTenda AC15 V15.03.05.18 was discovered to contain a stack overflow via the timeZone parameter in the form_fast_setting_wifi_set function.EPSS 0.9%CVE-2024-2614HIGHMemory safety bugs present in Firefox 123, Firefox ESR 115.8, and Thunderbird 115.8. Some of these bugs showed evidence of memory corruptionEPSS 0.9%CVE-2023-52724HIGHOpen Networking Foundation SD-RAN onos-kpimon 0.4.7 allows out-of-bounds array access in the processIndicationFormat1 function.EPSS 0.9%CVE-2026-15422CRITICALSCTP needs to better-check INIT ACK chunk parametersEPSS 0.9%CVE-2022-43617HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Corel CorelDRAW Graphics Suite 23.5.0.506.EPSS 0.9%CVE-2022-3200HIGHHeap buffer overflow in Internals in Google Chrome prior to 105.0.5195.125 allowed a remote attacker to potentially exploit heap corruption EPSS 0.9%CVE-2022-43614HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Corel CorelDRAW Graphics Suite 23.5.0.506.EPSS 0.9%CVE-2024-20376HIGHA vulnerability in the web-based management interface of Cisco IP Phone firmware could allow an unauthenticated, remote attacker to cause anEPSS 0.9%CVE-2022-43618HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Corel CorelDRAW Graphics Suite 23.5.0.506.EPSS 0.9%CVE-2025-20646CRITICALIn wlan AP FW, there is a possible out of bounds write due to improper input validation. This could lead to remote escalation of privilege wEPSS 0.9%CVE-2022-28662—A vulnerability has been identified in Simcenter Femap (All versions < V2022.1.2). The affected application contains an out of bounds write EPSS 0.9%