Fallos del tipo CWE-416

5038 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-2021-3738—In DCE/RPC it is possible to share the handles (cookies for resource state) between multiple connections via a mechanism called 'associationEPSS 2.0%CVE-2021-46578HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%CVE-2021-46580HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%CVE-2021-46597HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%CVE-2021-46567HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%CVE-2021-46571HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.16.0.80. User interaction EPSS 2.0%CVE-2021-46579HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%CVE-2021-46601HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%CVE-2021-46573HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%CVE-2021-46588HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%CVE-2021-34909HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction EPSS 2.0%CVE-2022-1199HIGHA flaw was found in the Linux kernel. This flaw allows an attacker to crash the Linux kernel by simulating amateur radio from the user spaceEPSS 2.0%CVE-2021-45054LOWAdobe InCopy JPEG2000 Parsing Use-After-Free Information Disclosure VulnerabilityEPSS 2.0%CVE-2025-55693HIGHWindows Kernel Elevation of Privilege VulnerabilityEPSS 2.0%CVE-2020-10700MEDIUMA use-after-free flaw was found in the way samba AD DC LDAP servers, handled 'Paged Results' control is combined with the 'ASQ' control. A mEPSS 2.0%CVE-2021-34872HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley View 10.15.0.75. User interaction EPSS 2.0%CVE-2022-28282MEDIUMBy using a link with <code>rel="localization"</code> a use-after-free could have been triggered by destroying an object during JavaScript exEPSS 2.0%CVE-2021-27649CRITICALUse after free vulnerability in file transfer protocol component in Synology DiskStation Manager (DSM) before 6.2.3-25426-3 allows remote atEPSS 2.0%CVE-2021-46613HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%CVE-2021-46633HIGHThis vulnerability allows remote attackers to execute arbitrary code on affected installations of Bentley MicroStation CONNECT 10.16.0.80. UEPSS 2.0%