Weaknesses of type CWE-362

1,089 results

Condição de corrida

Ocorre quando dois ou mais processos/threads acessam e modificam um recurso compartilhado simultaneamente, sem sincronização adequada. O resultado final depende da ordem e timing das operações, criando estados inconsistentes que podem ser explorados para contornar controles de segurança, corromper dados ou ganhar privilégios.

Example

Um aplicativo verifica se um arquivo existe e tem permissão de leitura (check), depois o abre (use). Um atacante, entre o check e o use, substitui o arquivo por um link simbólico apontando para /etc/passwd. O programa abre inadvertidamente um arquivo sensível que não deveria acessar.

How to mitigate

Use primitivas de sincronização (mutexes, semáforos, locks) para serializar acessos críticos. Quando possível, use operações atômicas do SO (ex: open com flags O_EXCL) que combinam check e use em uma única syscall indivisível. Validar estado antes de cada operação crítica, não apenas uma vez.

CVE-2021-4207—A flaw was found in the QXL display device emulation in QEMU. A double fetch of guest controlled values `cursor->header.width` and `cursor->EPSS 0.4%CVE-2026-48708HIGHOliveTin has a Concurrent Template Parsing Race Condition which Leads to Cross-Request Command ContaminationEPSS 0.4%CVE-2016-15036MEDIUMDeis Workflow Manager race conditionEPSS 0.4%CVE-2025-15244MEDIUMPHPEMS Purchase Request race conditionEPSS 0.4%CVE-2024-24770MEDIUMUsername timing attack on recover password/MFA token in vantage6EPSS 0.4%CVE-2026-42909HIGHRemote Desktop Client Remote Code Execution VulnerabilityEPSS 0.4%CVE-2026-64779LOWA memory corruption vulnerability was addressed with improved locking. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10,EPSS 0.4%CVE-2026-28789HIGHOliveTin: Unauthenticated DoS via concurrent map writes in OAuth2 state handlingEPSS 0.4%CVE-2025-48880MEDIUMFreeScout has Race Condition When Deleting UsersEPSS 0.4%CVE-2022-50373CRITICALfs: dlm: fix race in lowcommsEPSS 0.4%CVE-2022-42930HIGHIf two Workers were simultaneously initializing their CacheStorage, a data race could have occurred in the `ThirdPartyUtil` component. This EPSS 0.4%CVE-2026-17709CRITICALRace in Downloads in Google Chrome on Mac prior to 151.0.7922.72 allowed a remote attacker who had compromised the renderer process to potenEPSS 0.4%CVE-2025-7954MEDIUMRace Condition in Shopware Voucher SubmissionEPSS 0.4%CVE-2026-19506HIGHRDK-B WebUI race condition vulnerabilityEPSS 0.4%CVE-2024-0605HIGHUsing a javascript: URI with a setTimeout race condition, an attacker can execute unauthorized scripts on top origin sites in urlbar. This bEPSS 0.4%CVE-2024-20509MEDIUMA vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z Series Teleworker Gateway devices could allow an unEPSS 0.4%CVE-2026-51082HIGHA race condition between the vncproxy and vncwebsocket API calls in Proxmox Virtual Environment (PVE) 9.x pve-manager before 9.1.9 and 8.x bEPSS 0.4%CVE-2025-29841HIGHUniversal Print Management Service Elevation of Privilege VulnerabilityEPSS 0.4%CVE-2022-3328HIGHRace condition in snap-confine's must_mkdir_and_open_with_perms()EPSS 0.4%CVE-2024-12747MEDIUMRsync: race condition in rsync handling symbolic linksEPSS 0.4%