Fallos del tipo CWE-787

5846 resultados

Escrita fora dos limites de memória

Ocorre quando um programa escreve dados em uma posição de memória fora do intervalo alocado para um buffer, array ou estrutura. O atacante aproveita para sobrescrever dados adjacentes (variáveis, ponteiros, pilha de retorno), alterando o comportamento da aplicação ou assumindo controle total do sistema.

Ejemplo

Um programa lê 256 bytes de entrada do usuário e copia para um buffer de 64 bytes sem validação. O atacante envia 300 bytes, que transbordam o buffer e sobrescrevem o endereço de retorno na pilha, permitindo execução de código arbitrário.

Cómo mitigar

Sempre validar tamanho de entrada contra o limite do buffer antes de copiar (usar strncpy, snprintf em vez de strcpy, sprintf). Em linguagens modernas, usar estruturas bounds-checked (Rust, C# arrays) ou linters que detectem padrões perigosos.

CVE-2020-15208HIGHData corruption in tensorflow-liteEPSS 0.9%CVE-2023-23518HIGHThe issue was addressed with improved memory handling. This issue is fixed in macOS Monterey 12.6.3, macOS Ventura 13.2, watchOS 9.3, macOS EPSS 0.9%CVE-2025-14231CRITICALBuffer overflow in print job processing by WSD on Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker on tEPSS 0.9%CVE-2025-14235CRITICALBuffer overflow in XPS font fpgm data processing on Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker onEPSS 0.9%CVE-2022-35030MEDIUMOTFCC commit 617837b was discovered to contain a segmentation violation via /release-x64/otfccdump+0x4fe954.EPSS 0.9%CVE-2022-35023MEDIUMOTFCC commit 617837b was discovered to contain a segmentation violation via /lib/x86_64-linux-gnu/libc.so.6+0xbb384.EPSS 0.9%CVE-2025-14234CRITICALBuffer overflow in CPCA list processing on Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker on the netwEPSS 0.9%CVE-2023-29416MEDIUMAn issue was discovered in libbzip3.a in bzip3 before 1.3.0. A bz3_decode_block out-of-bounds write can occur with a crafted archive becauseEPSS 0.9%CVE-2025-14232CRITICALBuffer overflow in XML processing of XPS file in Small Office Multifunction Printers and Laser Printers(*) which may allow an attacker on thEPSS 0.9%CVE-2025-14236CRITICALBuffer overflow in Address Book attribute tag processing on Small Office Multifunction Printers(*) which may allow an attacker on the networEPSS 0.9%CVE-2023-27042HIGHTenda AX3 V16.03.12.11 is vulnerable to Buffer Overflow via /goform/SetFirewallCfg.EPSS 0.9%CVE-2022-45509HIGHTenda W30E V1.0.1.25(633) was discovered to contain a stack overflow via the account parameter at /goform/addUserName.EPSS 0.9%CVE-2022-45508HIGHTenda W30E V1.0.1.25(633) was discovered to contain a stack overflow via the new_account parameter at /goform/editUserName.EPSS 0.9%CVE-2022-45524HIGHTenda W30E V1.0.1.25(633) was discovered to contain a stack overflow via the opttype parameter at /goform/IPSECsave.EPSS 0.9%CVE-2022-45522HIGHTenda W30E V1.0.1.25(633) was discovered to contain a stack overflow via the page parameter at /goform/SafeClientFilter.EPSS 0.9%CVE-2022-45520HIGHTenda W30E V1.0.1.25(633) was discovered to contain a stack overflow via the page parameter at /goform/qossetting.EPSS 0.9%CVE-2022-45501HIGHTenda W6-S v1.0.0.4(510) was discovered to contain a stack overflow via the wl_radio parameter at /goform/wifiSSIDset.EPSS 0.9%CVE-2023-29462HIGHRockwell Automation Arena Simulation Software Remote Code Execution VulnerabilityEPSS 0.9%CVE-2022-45518HIGHTenda W30E V1.0.1.25(633) was discovered to contain a stack overflow via the page parameter at /goform/SetIpBind.EPSS 0.9%CVE-2022-45499HIGHTenda W6-S v1.0.0.4(510) was discovered to contain a stack overflow via the wl_radio parameter at /goform/WifiMacFilterGet.EPSS 0.9%