Weaknesses of type CWE-122

3,195 results

Transbordamento de heap (heap overflow)

Ocorre quando um programa escreve dados além dos limites de um buffer alocado dinamicamente na memória heap, sobrescrevendo dados adjacentes ou metadados do alocador. Isso permite que um atacante corrompa estruturas críticas, execute código arbitrário ou cause travamento da aplicação.

Example

Uma função recebe um tamanho de entrada sem validar e copia para um buffer: `strcpy(heap_buffer, user_input)` sem verificar se user_input cabe. Se o usuário enviar 1000 bytes para um buffer de 256, o overflow sobrescreve estruturas próximas no heap e pode ser explorado para RCE.

How to mitigate

Use funções seguras de cópia (`strncpy`, `strlcpy`), valide e limite o tamanho da entrada antes de copiar, e considere usar linguagens com gerenciamento automático de memória ou ferramentas como AddressSanitizer durante testes para detectar overflows.

CVE-2026-69242HIGHlibvips: Integer overflow leading to heap buffer overflow leading to possible attacker-controlled mmap-resident writeEPSS 0.3%CVE-2026-21277HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2026-21304HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2025-2019HIGHAshlar-Vellum Cobalt VC6 File Parsing Heap-based Buffer Overflow Remote Code Execution VulnerabilityEPSS 0.3%CVE-2023-51795HIGHBuffer Overflow vulnerability in Ffmpeg v.N113007-g8d24a28d06 allows a local attacker to execute arbitrary code via the libavfilter/avf_showEPSS 0.3%CVE-2025-1656HIGHPDF File Parsing Heap-based Overflow VulnerabilityEPSS 0.3%CVE-2025-10502HIGHHeap buffer overflow in ANGLE in Google Chrome prior to 140.0.7339.185 allowed a remote attacker to potentially exploit heap corruption via EPSS 0.3%CVE-2025-2900HIGHIBM Semeru Runtime denial of serviceEPSS 0.3%CVE-2026-69468HIGHWindows Volume Manager Extension Driver Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-68897HIGHMicrosoft Standard XPS Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-10744HIGHIBM MQ for HPE NonStop is vulnerable to a issue in MQINQ request validationEPSS 0.3%CVE-2026-69492HIGHWindows Partition Management Driver Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2024-1848HIGHMultiple vulnerabilities exist in file reading procedure in SOLIDWORKS Desktop on Release SOLIDWORKS 2024EPSS 0.3%CVE-2025-7545MEDIUMGNU Binutils objcopy.c copy_section heap-based overflowEPSS 0.3%CVE-2026-27285MEDIUMInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2024-53310MEDIUMA Structured Exception Handler based buffer overflow vulnerability exists in Effectmatrix Total Video Converter Command Line (TVCC) 2.50 wheEPSS 0.3%CVE-2024-32229HIGHFFmpeg 7.0 contains a heap-buffer-overflow at libavfilter/vf_tiltandshift.c:189:5 in copy_column.EPSS 0.3%CVE-2025-47134HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2025-54268HIGHBridge | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2025-61804HIGHAnimate | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%