Fallos del tipo CWE-416

5036 resultados

Uso após liberação de memória

Ocorre quando o código tenta acessar uma área de memória que já foi liberada (deallocated). O programa continua usando um ponteiro que aponta para um endereço inválido, causando leitura/escrita em memória não controlada. Isso pode levar a crash, corrupção de dados ou execução arbitrária de código.

Ejemplo

Um navegador aloca memória para um objeto DOM, depois o remove da página e libera a memória. Se um script JavaScript ainda tentar acessar esse objeto deletado, o navegador tenta ler/escrever em um endereço que agora contém outro dado, causando comportamento impredizível ou exploração por atacante.

Cómo mitigar

Use linguagens com garbage collection (Java, Python, C#) ou práticas rigorosas: null os ponteiros após free(), use smart pointers (C++), evite compartilhamento de referências sem sincronização, faça testes de memória com ferramentas como Valgrind ou AddressSanitizer.

CVE-2024-38085HIGHWindows Graphics Component Elevation of Privilege VulnerabilityEPSS 5.3%CVE-2019-17140HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 9.6.0.25114. User interacEPSS 5.2%CVE-2019-17141HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 9.6.0.25114. User interacEPSS 5.2%CVE-2021-28632HIGHZDI-CAN-13471: Adobe Acrobat Reader DC AcroForm Field Use-After-Free Remote Code Execution VulnerabilityEPSS 5.2%CVE-2021-28562HIGHAdobe Acrobat Reader use-after-free could lead to arbitrary code executionEPSS 5.1%CVE-2016-8619MEDIUMThe function `read_data()` in security.c in curl before version 7.51.0 is vulnerable to memory double free.EPSS 5.0%CVE-2024-5841HIGHUse after free in V8 in Google Chrome prior to 126.0.6478.54 allowed a remote attacker to potentially exploit heap corruption via a crafted EPSS 5.0%CVE-2024-9954HIGHUse after free in AI in Google Chrome prior to 130.0.6723.58 allowed a remote attacker to potentially exploit heap corruption via a crafted EPSS 4.9%CVE-2020-27267—KEPServerEX v6.0 to v6.9, ThingWorx Kepware Server v6.8 and v6.9, ThingWorx Industrial Connectivity (all versions), OPC-Aggregator (all versEPSS 4.9%CVE-2026-5281HIGHUse after free in Dawn in Google Chrome prior to 146.0.7680.178 allowed a remote attacker who had compromised the renderer process to executEPSS 4.9%KEVCVE-2024-12382HIGHUse after free in Translate in Google Chrome prior to 131.0.6778.139 allowed a remote attacker to potentially exploit heap corruption via a EPSS 4.9%CVE-2023-44371HIGHZDI-CAN-21998: Adobe Acrobat Reader DC Font Parsing Use-After-Free Remote Code Execution VulnerabilityEPSS 4.9%CVE-2020-10907HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.7.1.29511. User interactionEPSS 4.9%CVE-2020-10900HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.7.1.29511. User interactionEPSS 4.9%CVE-2020-10906HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.7.1.29511. User interactionEPSS 4.9%CVE-2016-8618MEDIUMThe libcurl API function called `curl_maprintf()` before version 7.51.0 can be tricked into doing a double-free due to an unsafe `size_t` muEPSS 4.8%CVE-2020-10899HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit Reader 9.7.1.29511. User interactionEPSS 4.8%CVE-2023-49288HIGHDenial of Service in HTTP Collapsed Forwarding in SquidEPSS 4.8%CVE-2018-9951—This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.0.29935. User interactiEPSS 4.8%CVE-2023-29358HIGHWindows GDI Elevation of Privilege VulnerabilityEPSS 4.7%