What is CVE-2020-3569?

CVE-2020-3569 is a high-severity vulnerability in Cisco Asr_9000v, classified under Uncontrolled Resource Consumption. CVSS score: 8.6/10. Published 2020-09-23.

How severe is CVE-2020-3569?

High severity. CVSS v3 base score is 8.6 out of 10.

Is CVE-2020-3569 known to be exploited?

Yes. CVE-2020-3569 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 6 public proof-of-concept repositories are indexed.

Resource exhaustion in Cisco Asr_9000v

CVE-2020-3569

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) p…

Vulnerability class: DoS (Denial of Service)

EPSS: 0.033 (87.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2021-11-03. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-05-03.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Mitigation, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2020-3569?: CVE-2020-3569 is a high-severity vulnerability in Cisco Asr_9000v, classified under Uncontrolled Resource Consumption. CVSS score: 8.6/10. Published 2020-09-23.
How severe is CVE-2020-3569?: High severity. CVSS v3 base score is 8.6 out of 10.
Is CVE-2020-3569 known to be exploited?: Yes. CVE-2020-3569 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 6 public proof-of-concept repositories are indexed.