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CVE-2020-3569

high · 8.6Actively exploited

On the CISA Known Exploited Vulnerabilities catalog

Apply updates per vendor instructions.

Added 2021-11-03Remediation due 2022-05-03

Multiple vulnerabilities in the Distance Vector Multicast Routing Protocol (DVMRP) feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to either immediately crash the Internet Group Management Protocol (IGMP) process or make it consume available memory and eventually crash. The memory consumption may negatively impact other processes that are running on the device. These vulnerabilities are due to the incorrect handling of IGMP packets. An attacker could exploit these vulnerabilities by sending crafted IGMP traffic to an affected device. A successful exploit could allow the attacker to immediately crash the IGMP process or cause memory exhaustion, resulting in other processes becoming unstable. These processes may include, but are not limited to, interior and exterior routing protocols. Cisco will release software updates that address these vulnerabilities.

8.6
CVSS
3.3%
EPSS (exploit prob.)
88th
EPSS percentile
2020-09-23
Published

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Weaknesses

CWE-400CWE-770

Affected products

VendorProductAffected versions
ciscoios_xr6.1.4
ciscoios_xr6.2.3
ciscoios_xr6.3.3
ciscoios_xr6.4.2
ciscoios_xr6.5.3
ciscoios_xr6.6.2
ciscoios_xr6.6.3
ciscoios_xr7.0.2
ciscoios_xr7.1.2
ciscoios_xr7.1.15
ciscoasr_9000vall versions
ciscoasr_9001all versions
ciscoasr_9006all versions
ciscoasr_9010all versions
ciscoasr_9901all versions
ciscoasr_9903all versions
ciscoasr_9904all versions
ciscoasr_9906all versions
ciscoasr_9910all versions
ciscoasr_9912all versions
ciscoasr_9922all versions
cisconcs_5001all versions
cisconcs_5002all versions
cisconcs_5011all versions
cisconcs_520all versions
cisconcs_540all versions
cisconcs_5501all versions
cisconcs_5501se
cisconcs_5502all versions
cisconcs_5502se
cisconcs_5508all versions
cisconcs_5516all versions
cisconcs_560all versions
cisconcs_6008all versions
ciscoios_xr< 6.5.2
cisconcs_5001all versions
cisconcs_5002all versions
cisconcs_5011all versions
cisconcs_520all versions
cisconcs_540all versions

Check a specific version with /api/v1/cve/match.

References

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2020-3569