ACTIEF MISBRUIKT
CVE-2020-3566: Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability
| Leverancier | Cisco |
|---|---|
| Product | IOS XR |
| Actief misbruikt | Ja |
| Toegevoegd aan CISA KEV | 3 nov 2021 |
| CISA-deadline (Amerikaanse overheid) | 3 mei 2022 |
| Zwakte (CWE) | CWE-400 |
Vereiste actie (tekst van CISA, Engels)
Apply updates per vendor instructions.
Beschrijving (NVD, Engels)
Cisco IOS XR Distance Vector Multicast Routing Protocol (DVMRP) incorrectly handles Internet Group Management Protocol (IGMP) packets. Exploitation could allow an unauthenticated, remote attacker to immediately crash the IGMP process or make it consume available memory and eventually crash.
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Gegevens van NVD, CISA KEV, FIRST EPSS en adviezen van leveranciers. Bijgewerkt 10 nov 2026.