Fallos del tipo CWE-119

3505 resultados

Corrupção de memória genérica

Fraqueza genérica que descreve quando software escreve dados fora dos limites esperados de um buffer ou estrutura de memória, sobrescrevendo dados adjacentes. Permite ao atacante corromper dados críticos, executar código arbitrário ou derrubar a aplicação.

Ejemplo

Um programa C que copia uma string do usuário para um array fixo sem validar comprimento: strcpy(buffer, user_input) em um buffer de 64 bytes, quando o input tem 200 caracteres. Os dados transbordados sobrescrevem variáveis, ponteiros ou endereços de retorno na pilha.

Cómo mitigar

Use funções seguras de cópia (strncpy, strlcpy, memcpy com tamanho validado), implemente validação de entrada e comprimento antes de qualquer operação de escrita em buffer, e ative proteções de compilador como stack canaries e ASLR. Em linguagens modernas (Rust, Go), o gerenciamento automático de memória elimina essa classe de bugs.

CVE-2025-5572HIGHD-Link DCS-932L setSystemEmail stack-based overflowEPSS 6.3%CVE-2017-1000257CRITICALAn IMAP FETCH response line indicates the size of the returned data, in number of bytes. When that response says the data is zero bytes, libEPSS 6.2%CVE-2025-43539HIGHThe issue was addressed with improved bounds checks. This issue is fixed in iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS SeEPSS 6.2%CVE-2015-6492HIGHAllen-Bradley MicroLogix 1100 devices before B FRN 15.000 and 1400 devices before B FRN 15.003 allow remote attackers to cause a denial of sEPSS 6.1%CVE-2025-5503HIGHTOTOLINK X15 formMapReboot stack-based overflowEPSS 6.0%CVE-2025-9605CRITICALTenda AC21/AC23 GetParentControlInfo stack-based overflowEPSS 6.0%CVE-2017-6753—A vulnerability in Cisco WebEx browser extensions for Google Chrome and Mozilla Firefox could allow an unauthenticated, remote attacker to eEPSS 6.0%CVE-2018-5473—An Improper Restriction of Operations within the Bounds of a Memory Buffer issue was discovered in GE D60 Line Distance Relay devices runninEPSS 5.9%CVE-2026-7854CRITICALD-Link DI-8100 POST Parameter url_rule.asp url_rule_asp buffer overflowEPSS 5.9%CVE-2025-14709CRITICALShiguangwu sgwbox N3 WIRELESSCFGGET http_eshell_server buffer overflowEPSS 5.9%CVE-2025-6627HIGHTOTOLINK A702R HTTP POST Request formIpv6Setup buffer overflowEPSS 5.8%CVE-2020-3323CRITICALCisco Small Business RV110W, RV130, RV130W, and RV215W Routers Management Interface Remote Command Execution VulnerabilityEPSS 5.7%CVE-2025-14534CRITICALUTT 进取 512W Endpoint formNatStaticMap strcpy buffer overflowEPSS 5.7%CVE-2026-4903HIGHTenda AC5 POST Request QuickIndex formQuickIndex memory corruptionEPSS 5.7%CVE-2025-14535CRITICALUTT 进取 512W formConfigFastDirectionW strcpy buffer overflowEPSS 5.6%CVE-2025-6110HIGHTenda FH1201 SafeMacFilter stack-based overflowEPSS 5.6%CVE-2025-9299HIGHTenda M3 getMasterPassengerAnalyseData formGetMasterPassengerAnalyseData stack-based overflowEPSS 5.5%CVE-2025-10953HIGHUTT 1200GW/1250GW formApMail buffer overflowEPSS 5.4%CVE-2025-12618HIGHTenda AC8 DatabaseIniSet buffer overflowEPSS 5.4%CVE-2025-9392HIGHLinksys RE6250/RE6300/RE6350/RE6500/RE7000/RE9000 qosClassifier stack-based overflowEPSS 5.3%