Falhas do tipo CWE-787

5.161 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-2022-35699HIGHAdobe Bridge Font Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2022-35700HIGHAdobe Bridge SVG File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2022-42415HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is reEPSS 0.4%CVE-2026-84698HIGHPX4 Autopilot sd_bench Heap Buffer Overflow via Block SizeEPSS 0.4%CVE-2024-20073MEDIUMIn wlan service, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege EPSS 0.4%CVE-2022-42416HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is reEPSS 0.4%CVE-2026-33642CRITICALKitty has a Heap Buffer Over-Read/Write via Integer Overflow in compose_rectangles Bounds CheckEPSS 0.4%CVE-2022-42420HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is reEPSS 0.4%CVE-2022-48486HIGHConfiguration defects in the secure OS module.Successful exploitation of this vulnerability will affect availability.EPSS 0.4%CVE-2022-42419HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is reEPSS 0.4%CVE-2022-42423HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of PDF-XChange Editor. User interaction is reEPSS 0.4%CVE-2024-20072MEDIUMIn wlan driver, there is a possible out of bounds write due to improper input validation. This could lead to local escalation of privilege wEPSS 0.4%CVE-2026-76840HIGHRustDesk through 1.4.9 Heap Buffer Overflow via Unvalidated CLIPRDR FileContentsResponse LengthEPSS 0.4%CVE-2023-42051HIGHPDF-XChange Editor U3D File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-42071HIGHPDF-XChange Editor PDF File Parsing Out-Of-Bounds Write Remote Code Execution VulnerabilityEPSS 0.4%CVE-2023-37416HIGHMultiple out-of-bounds write vulnerabilities exist in the VCD parse_valuechange portdump functionality of GTKWave 3.3.115. A specially craftEPSS 0.4%CVE-2023-37417HIGHMultiple out-of-bounds write vulnerabilities exist in the VCD parse_valuechange portdump functionality of GTKWave 3.3.115. A specially craftEPSS 0.4%CVE-2023-37420HIGHMultiple out-of-bounds write vulnerabilities exist in the VCD parse_valuechange portdump functionality of GTKWave 3.3.115. A specially craftEPSS 0.4%CVE-2023-37418HIGHMultiple out-of-bounds write vulnerabilities exist in the VCD parse_valuechange portdump functionality of GTKWave 3.3.115. A specially craftEPSS 0.4%CVE-2026-92880MEDIUMvgmstream EA SCHl parser vadpcm_decoder.c vadpcm_read_coefs_be out-of-bounds writeEPSS 0.4%