{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-06-29T05:25:08.704","vulnerabilities":[{"cve":{"id":"CVE-2025-48945","sourceIdentifier":"security-advisories@github.com","published":"2025-06-20T20:15:33.570","lastModified":"2026-06-17T09:30:31.813","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"pycares is a Python module which provides an interface to c-ares. c-ares is a C library that performs DNS requests and name resolutions asynchronously. Prior to version 4.9.0, pycares is vulnerable to a use-after-free condition that occurs when a Channel object is garbage collected while DNS queries are still pending. This results in a fatal Python error and interpreter crash. The vulnerability has been fixed in pycares 4.9.0 by implementing a safe channel destruction mechanism."},{"lang":"es","value":"Pycares es un módulo de Python que proporciona una interfaz para c-ares. C-ares es una librería de C que realiza solicitudes DNS y resoluciones de nombres de forma asíncrona. En versiones anteriores a la 4.9.0, Pycares era vulnerable a una condición de use-after-free que se produce cuando un objeto de canal se recolecta como basura mientras las consultas DNS aún están pendientes. Esto provoca un error fatal de Python y un fallo del intérprete. Esta vulnerabilidad se ha corregido en Pycares 4.9.0 mediante la implementación de un mecanismo seguro de destrucción de canales."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"aio-libs","product":"aiodns","versions":[{"version":"< 4.9.0","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":8.2,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-06-20T20:05:50.595661Z","id":"CVE-2025-48945","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-416"}]}],"references":[{"url":"https://github.com/aio-libs/aiodns/commit/f259a6e3650555157af53ac2b39f2ff545321d55","source":"security-advisories@github.com"},{"url":"https://github.com/aio-libs/aiodns/releases/tag/v3.5.0","source":"security-advisories@github.com"},{"url":"https://github.com/saghul/pycares/commit/ebfd7d71eb8e74bc1057a361ea79a5906db510d4","source":"security-advisories@github.com"},{"url":"https://github.com/saghul/pycares/releases/tag/v4.9.0","source":"security-advisories@github.com"},{"url":"https://github.com/saghul/pycares/security/advisories/GHSA-5qpg-rh4j-qp35","source":"security-advisories@github.com"},{"url":"https://github.com/saghul/pycares/security/advisories/GHSA-5qpg-rh4j-qp35","source":"security-advisories@github.com"},{"url":"https://github.com/saghul/pycares/security/advisories/GHSA-5qpg-rh4j-qp35","source":"security-advisories@github.com"},{"url":"https://github.com/saghul/pycares/security/advisories/GHSA-5qpg-rh4j-qp35","source":"security-advisories@github.com"}]}}]}