{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-09T20:24:04.220","vulnerabilities":[{"cve":{"id":"CVE-2026-21920","sourceIdentifier":"sirt@juniper.net","published":"2026-01-15T21:16:08.217","lastModified":"2026-01-23T18:51:59.987","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"An Unchecked Return Value vulnerability in the DNS module of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS).\n\n\n\n\nIf an SRX Series device configured for DNS processing, receives a specifically formatted DNS request flowd will crash and restart, which causes a service interruption until the process has recovered.\n\nThis issue affects Junos OS on SRX Series:\n\n\n\n  *  23.4 versions before 23.4R2-S5,\n  *  24.2 versions before 24.2R2-S1,\n  *  24.4 versions before 24.4R2.\n\n\n\n\n\n\nThis issue does not affect Junos OS versions before 23.4R1."},{"lang":"es","value":"Una vulnerabilidad de valor de retorno no verificado en el módulo DNS de Juniper Networks Junos OS en la serie SRX permite a un atacante no autenticado y basado en la red causar una denegación de servicio (DoS).\n\nSi un dispositivo de la serie SRX configurado para el procesamiento de DNS recibe una solicitud DNS específicamente formateada, flowd se bloqueará y reiniciará, lo que causa una interrupción del servicio hasta que el proceso se haya recuperado.\n\nEste problema afecta a Junos OS en la serie SRX:\n\n  *  versiones 23.4 anteriores a 23.4R2-S5,\n  *  versiones 24.2 anteriores a 24.2R2-S1,\n  *  versiones 24.4 anteriores a 24.4R2.\n\nEste problema no afecta a las versiones de Junos OS anteriores a 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