Is CVE-2022-20714 in the CISA KEV catalog?

No. CVE-2022-20714 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-20714?

CVE-2022-20714 has a CVSS v3 base score of 8.6 (HIGH).

What is the EPSS score for CVE-2022-20714?

CVE-2022-20714 has an EPSS score of 1.38% (69th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix or mitigate CVE-2022-20714?

No published fix for CVE-2022-20714 has been found yet. Check the linked vendor advisories for guidance as it becomes available.

CVE & CISA-KEV Catalog

CVE-2022-20714

HIGH

8.6

CVSS v3

NVD

Description

A vulnerability in the data plane microcode of Lightspeed-Plus line cards for Cisco ASR 9000 Series Aggregation Services Routers could allow an unauthenticated, remote attacker to cause the line card to reset. This vulnerability is due to the incorrect handling of malformed packets that are received on the Lightspeed-Plus line cards. An attacker could exploit this vulnerability by sending a crafted IPv4 or IPv6 packet through an affected device. A successful exploit could allow the attacker to cause the Lightspeed-Plus line card to reset, resulting in a denial of service (DoS) condition for any traffic that traverses that line card.

CWE-126Buffer Over-read CWE-125Out-of-bounds Read

How to fix

No published remediation has been found for this vulnerability's affected products yet.

Mitigation guidance may be in the linked vendor advisories in the References section below.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.38%probability of exploitation in 30 days

69thpercentile

Moderate risk: more likely to be exploited than 69% of all known CVEs.

References

Vendor Advisory1

tools.cisco.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.