8.6
Élevée
CVE-2020-3566 Cisco IOS XR Software DVMRP Memory Exhaustion Vulnerability
Exploitation active constatée
· catalogue CISA KEV
Action attendue
Apply updates per vendor instructions.
Campagnes de rançongiciel
Non constatée à ce jour
Faiblesse
CWE-400
Description
A vulnerability in the Distance Vector Multicast Routing Protocol (DVMRP) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to exhaust process memory of an affected device. The vulnerability is due to insufficient queue management for Internet Group Management Protocol (IGMP) packets. An attacker could exploit this vulnerability by sending crafted IGMP traffic to an affected device. A successful exploit could allow the attacker to cause memory exhaustion, resulting in instability of other processes. These processes may include, but are not limited to, interior and exterior routing protocols. Cisco will release software updates that address this vulnerability.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Cisco IOS XR Software | Versions non publiées |
Autres CVE de Cisco IOS XR Software
Les 115 CVE de Cisco IOS XR Software →
CVE-2026-76505
A vulnerability in the IPv4 packet processing functionality of Cisco IOS XR Software that affects Cisco ASR 9000 and…
7.5
Élevée
CVE-2026-20278
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering…
8.8
Élevée
CVE-2026-20280
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software…
8.8
Élevée
CVE-2026-20279
As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering…
9.8
Critique