Falhas do tipo CWE-122

3.190 resultados

Estouro de heap

Ocorre quando código escreve mais dados do que o espaço alocado em uma região de memória dinâmica (heap), sobrescrevendo dados adjacentes. Um atacante pode explorar isso para corromper estruturas de dados críticas, contornar proteções de segurança ou executar código arbitrário.

Exemplo

Um servidor web aloca 256 bytes para armazenar um nome de usuário, mas copia 512 bytes de uma requisição sem validação. Os 256 bytes extras sobrescrevem ponteiros ou metadados do heap, permitindo execução de código ou negação de serviço.

Como mitigar

Use funções seguras que respeitam limites (strcpy_s, memcpy com tamanho verificado em runtime). Validar e limitar o tamanho de entrada antes de copiar. Ativar proteções como ASLR, stack canaries e ferramentas de sanitização (AddressSanitizer) em desenvolvimento.

CVE-2022-38404HIGHAdobe InCopy SVG File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.6%CVE-2022-38405HIGHAdobe InCopy SVG File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-19968MEDIUMOpen Asset Import Library Assimp 3DGS MDL7 Model LWOLoader.h ReadFaces_3DGS_MDL7 heap-based overflowEPSS 0.6%CVE-2025-40928HIGHJSON::XS before version 4.04 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified impactEPSS 0.6%CVE-2024-27245MEDIUMZoom Workplace Apps and SDKs - Buffer OverflowEPSS 0.6%CVE-2020-10928HIGHThis vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of NETGEAR R6700 V1.0.4.84_10.0.58 EPSS 0.6%CVE-2024-29013MEDIUMHeap-based buffer overflow vulnerability in the SonicOS SSL-VPN allows an authenticated remote attacker to cause Denial of Service (DoS) viaEPSS 0.6%CVE-2026-8987CRITICALAuthenticated Heap OverflowEPSS 0.6%CVE-2026-31970HIGHHTSlib BGZF index file reader has a heap buffer overflowEPSS 0.6%CVE-2026-63633HIGHFreeRDP: Heap buffer overflow in Opus audio decode (`freerdp_dsp_decode_opus` resizes the wrong stream) — server→clientEPSS 0.6%CVE-2026-55194HIGHFreeRDPHeap-buffer-overflow write in TS Gateway RPC RESPONSE reassembly due to alloc_hint capacity mismatchEPSS 0.6%CVE-2025-20672CRITICALIn Bluetooth driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilEPSS 0.6%CVE-2025-0999HIGHHeap buffer overflow in V8 in Google Chrome prior to 133.0.6943.126 allowed a remote attacker to potentially exploit heap corruption via a cEPSS 0.6%CVE-2025-29979HIGHMicrosoft Excel Remote Code Execution VulnerabilityEPSS 0.6%CVE-2022-38432HIGHAdobe Photoshop SVG File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.6%CVE-2022-35708HIGHAdobe Bridge SGI File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.6%CVE-2024-32624HIGHHDF5 Library through 1.14.3 contains a heap-based buffer overflow in H5T__ref_mem_setnull in H5Tref.c (called from H5T__conv_ref in H5Tconv.EPSS 0.6%CVE-2026-2047HIGHGIMP ICNS File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.6%CVE-2026-46520HIGHImageMagick: Heap Buffer Over-Write in IPL decoder when reading multiple images of different dimensionsEPSS 0.6%CVE-2022-2809HIGHUnauthenticated out of bounds heap write in bmcwebEPSS 0.6%