Summary
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.
- Vendor
- Cisco
- Product
- IOS XR
- Added to KEV
- Nov 3, 2021
- Remediation due
- May 3, 2022 (US federal deadline)
- Ransomware use
- Not known
- Weakness
- CWE-400
- EPSS
- 3.3% as of Nov 12
In the news
- No Asia-Pacific article names this CVE yet.
Linked
Actors named alongside it:
none
Incidents exploiting it:
- none recorded
References