Falhas do tipo CWE-787

5.205 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-2023-0970HIGHSerial API Buffer Overflow in Z/IP GatewayEPSS 0.3%CVE-2025-26784MEDIUMAn issue was discovered in NAS in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330EPSS 0.3%CVE-2026-53196MEDIUMUSB: serial: io_ti: fix heap overflow in get_manuf_info()EPSS 0.3%CVE-2024-4080HIGHMemory Corruption Due to Improper Length Checks in LabVIEW tdcore.dllEPSS 0.3%CVE-2025-36937CRITICALIn AudioDecoder::HandleProduceRequest of audio_decoder.cc, there is a possible out of bounds write due to an incorrect bounds check. This coEPSS 0.3%CVE-2025-6651HIGHPDF-XChange Editor JP2 File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2024-50262HIGHbpf: Fix out-of-bounds write in trie_get_next_key()EPSS 0.3%CVE-2023-37644MEDIUMSWFTools 0.9.2 772e55a allows attackers to trigger a large memory-allocation attempt via a crafted document, as demonstrated by pdf2swf. ThiEPSS 0.3%CVE-2024-9744HIGHTungsten Automation Power PDF JP2 File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2025-1330HIGHIBM CICS TX code executionEPSS 0.3%CVE-2025-1329HIGHIBM CICS TX code executionEPSS 0.3%CVE-2024-9736HIGHTungsten Automation Power PDF PDF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2025-6654HIGHPDF-XChange Editor PRC File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2025-6659HIGHPDF-XChange Editor PRC File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2025-6647HIGHPDF-XChange Editor U3D File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2025-64301HIGHAn out‑of‑bounds write vulnerability exists in the EMF functionality of Canva Affinity. By using a specially crafted EMF file, an attacker cEPSS 0.3%CVE-2026-56114MEDIUMdhcpcd Stack Out-of-Bounds Write in dhcp6_makemessage()EPSS 0.3%CVE-2024-9740HIGHTungsten Automation Power PDF BMP File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2024-9746HIGHTungsten Automation Power PDF TGA File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.3%CVE-2024-1848HIGHMultiple vulnerabilities exist in file reading procedure in SOLIDWORKS Desktop on Release SOLIDWORKS 2024EPSS 0.3%